10639013 has 16 divisors (see below), whose sum is σ = 13343616. Its totient is φ = 8240640.

The previous prime is 10639003. The next prime is 10639019. The reversal of 10639013 is 31093601.

It is a cyclic number.

It is not a de Polignac number, because 10639013 - 2⁸ = 10638757 is a prime.

It is a super-2 number, since 2×10639013² = 226377195228338, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10639013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10639019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17645 + ... + 18237.

It is an arithmetic number, because the mean of its divisors is an integer number (833976).

Almost surely, 2^10639013 is an apocalyptic number.

It is an amenable number.

10639013 is a deficient number, since it is larger than the sum of its proper divisors (2704603).

10639013 is a wasteful number, since it uses less digits than its factorization.

10639013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 10639013 is about 3261.7499904193. The cubic root of 10639013 is about 219.9380886394.

The spelling of 10639013 in words is "ten million, six hundred thirty-nine thousand, thirteen".