10820631 has 8 divisors (see below), whose sum is σ = 14511600. Its totient is φ = 7171712.

The previous prime is 10820617. The next prime is 10820647. The reversal of 10820631 is 13602801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10820631 - 2⁷ = 10820503 is a prime.

It is a super-2 number, since 2×10820631² = 234172110476322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10820598 and 10820607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10820611) 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, 9906 + ... + 10943.

It is an arithmetic number, because the mean of its divisors is an integer number (1813950).

Almost surely, 2^10820631 is an apocalyptic number.

10820631 is a deficient number, since it is larger than the sum of its proper divisors (3690969).

10820631 is a wasteful number, since it uses less digits than its factorization.

10820631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21025.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 10820631 is about 3289.4727541051. The cubic root of 10820631 is about 221.1825508593.

The spelling of 10820631 in words is "ten million, eight hundred twenty thousand, six hundred thirty-one".