10209873 has 4 divisors (see below), whose sum is σ = 13613168. Its totient is φ = 6806580.

The previous prime is 10209863. The next prime is 10209883. The reversal of 10209873 is 37890201.

It is a happy number.

10209873 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37890201 = 3 ⋅12630067.

It is an interprime number because it is at equal distance from previous prime (10209863) and next prime (10209883).

It is not a de Polignac number, because 10209873 - 2¹⁷ = 10078801 is a prime.

It is a super-2 number, since 2×10209873² = 208483013352258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10209873.

It is not an unprimeable number, because it can be changed into a prime (10209803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1701643 + ... + 1701648.

It is an arithmetic number, because the mean of its divisors is an integer number (3403292).

Almost surely, 2^10209873 is an apocalyptic number.

It is an amenable number.

10209873 is a deficient number, since it is larger than the sum of its proper divisors (3403295).

10209873 is an equidigital number, since it uses as much as digits as its factorization.

10209873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3403294.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 10209873 is about 3195.2891887903. The cubic root of 10209873 is about 216.9402385215.

The spelling of 10209873 in words is "ten million, two hundred nine thousand, eight hundred seventy-three".