10656489 has 4 divisors (see below), whose sum is σ = 14208656. Its totient is φ = 7104324.

The previous prime is 10656479. The next prime is 10656509. The reversal of 10656489 is 98465601.

10656489 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.

It is not a de Polignac number, because 10656489 - 2⁷ = 10656361 is a prime.

It is a super-2 number, since 2×10656489² = 227121515614242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10656449) 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, 1776079 + ... + 1776084.

It is an arithmetic number, because the mean of its divisors is an integer number (3552164).

Almost surely, 2^10656489 is an apocalyptic number.

It is an amenable number.

10656489 is a deficient number, since it is larger than the sum of its proper divisors (3552167).

10656489 is an equidigital number, since it uses as much as digits as its factorization.

10656489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3552166.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 10656489 is about 3264.4278212269. The cubic root of 10656489 is about 220.0584486576.

The spelling of 10656489 in words is "ten million, six hundred fifty-six thousand, four hundred eighty-nine".