10187389 has 4 divisors (see below), whose sum is σ = 10209856. Its totient is φ = 10164924.

The previous prime is 10187383. The next prime is 10187399. The reversal of 10187389 is 98378101.

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.

It is a cyclic number.

It is not a de Polignac number, because 10187389 - 2²³ = 1798781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10187383) 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, 10539 + ... + 11464.

It is an arithmetic number, because the mean of its divisors is an integer number (2552464).

Almost surely, 2^10187389 is an apocalyptic number.

It is an amenable number.

10187389 is a deficient number, since it is larger than the sum of its proper divisors (22467).

10187389 is an equidigital number, since it uses as much as digits as its factorization.

10187389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22466.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 10187389 is about 3191.7689452716. The cubic root of 10187389 is about 216.7808741746.

The spelling of 10187389 in words is "ten million, one hundred eighty-seven thousand, three hundred eighty-nine".