10647813 has 16 divisors (see below), whose sum is σ = 15566400. Its totient is φ = 6420480.

The previous prime is 10647779. The next prime is 10647829. The reversal of 10647813 is 31874601.

It is a happy number.

It is not a de Polignac number, because 10647813 - 2⁸ = 10647557 is a prime.

It is a super-2 number, since 2×10647813² = 226751843365938, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10647863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6853 + ... + 8261.

It is an arithmetic number, because the mean of its divisors is an integer number (972900).

Almost surely, 2^10647813 is an apocalyptic number.

It is an amenable number.

10647813 is a deficient number, since it is larger than the sum of its proper divisors (4918587).

10647813 is a wasteful number, since it uses less digits than its factorization.

10647813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 10647813 is about 3263.0986807021. The cubic root of 10647813 is about 219.9987121137.

It can be divided in two parts, 106478 and 13, that added together give a triangular number (106491 = T₄₆₁).

The spelling of 10647813 in words is "ten million, six hundred forty-seven thousand, eight hundred thirteen".