10639517 has 8 divisors (see below), whose sum is σ = 12408000. Its totient is φ = 9119292.

The previous prime is 10639513. The next prime is 10639523. The reversal of 10639517 is 71593601.

It is not a de Polignac number, because 10639517 - 2² = 10639513 is a prime.

It is a super-2 number, since 2×10639517² = 226398643986578, which contains 22 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 (10639513) 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 7 ways as a sum of consecutive naturals, for example, 15167 + ... + 15852.

It is an arithmetic number, because the mean of its divisors is an integer number (1551000).

Almost surely, 2^10639517 is an apocalyptic number.

It is an amenable number.

10639517 is a deficient number, since it is larger than the sum of its proper divisors (1768483).

10639517 is an frugal number, since it uses more digits than its factorization.

10639517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31040 (or 31026 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 10639517 is about 3261.8272486445. The cubic root of 10639517 is about 219.9415616134.

The spelling of 10639517 in words is "ten million, six hundred thirty-nine thousand, five hundred seventeen".