10456639 has 4 divisors (see below), whose sum is σ = 10517256. Its totient is φ = 10396024.

The previous prime is 10456637. The next prime is 10456657. The reversal of 10456639 is 93665401.

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 10456639 - 2¹ = 10456637 is a prime.

It is a super-3 number, since 3×10456639³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10456637) 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, 30049 + ... + 30394.

It is an arithmetic number, because the mean of its divisors is an integer number (2629314).

Almost surely, 2^10456639 is an apocalyptic number.

10456639 is a deficient number, since it is larger than the sum of its proper divisors (60617).

10456639 is an equidigital number, since it uses as much as digits as its factorization.

10456639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60616.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 10456639 is about 3233.6726797869. The cubic root of 10456639 is about 218.6741120164.

The spelling of 10456639 in words is "ten million, four hundred fifty-six thousand, six hundred thirty-nine".