10209923 has 4 divisors (see below), whose sum is σ = 10249008. Its totient is φ = 10170840.

The previous prime is 10209883. The next prime is 10209931. The reversal of 10209923 is 32990201.

10209923 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.

It is a cyclic number.

It is not a de Polignac number, because 10209923 - 2¹² = 10205827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10209892 and 10209901.

It is not an unprimeable number, because it can be changed into a prime (10239923) 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, 19148 + ... + 19673.

It is an arithmetic number, because the mean of its divisors is an integer number (2562252).

Almost surely, 2^10209923 is an apocalyptic number.

10209923 is a deficient number, since it is larger than the sum of its proper divisors (39085).

10209923 is an equidigital number, since it uses as much as digits as its factorization.

10209923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39084.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 10209923 is about 3195.2970127987. The cubic root of 10209923 is about 216.9405926556.

The spelling of 10209923 in words is "ten million, two hundred nine thousand, nine hundred twenty-three".