10640859 has 4 divisors (see below), whose sum is σ = 14187816. Its totient is φ = 7093904.

The previous prime is 10640857. The next prime is 10640887. The reversal of 10640859 is 95804601.

10640859 is digitally balanced in base 3, because in such base 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 10640859 - 2¹ = 10640857 is a prime.

It is a super-2 number, since 2×10640859² = 226455760515762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10640857) 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, 1773474 + ... + 1773479.

It is an arithmetic number, because the mean of its divisors is an integer number (3546954).

Almost surely, 2^10640859 is an apocalyptic number.

10640859 is a deficient number, since it is larger than the sum of its proper divisors (3546957).

10640859 is an equidigital number, since it uses as much as digits as its factorization.

10640859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3546956.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 10640859 is about 3262.0329550757. The cubic root of 10640859 is about 219.9508085610.

The spelling of 10640859 in words is "ten million, six hundred forty thousand, eight hundred fifty-nine".