10931389 has 8 divisors (see below), whose sum is σ = 12518208. Its totient is φ = 9350880.

The previous prime is 10931387. The next prime is 10931399. The reversal of 10931389 is 98313901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10931389 - 2¹ = 10931387 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 (10931381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3054 + ... + 5584.

It is an arithmetic number, because the mean of its divisors is an integer number (1564776).

Almost surely, 2^10931389 is an apocalyptic number.

It is an amenable number.

10931389 is a deficient number, since it is larger than the sum of its proper divisors (1586819).

10931389 is an equidigital number, since it uses as much as digits as its factorization.

10931389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3155.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 10931389 is about 3306.2651133870. The cubic root of 10931389 is about 221.9346519236.

The spelling of 10931389 in words is "ten million, nine hundred thirty-one thousand, three hundred eighty-nine".