10889631 has 6 divisors (see below), whose sum is σ = 15729480. Its totient is φ = 7259748.

The previous prime is 10889623. The next prime is 10889647. The reversal of 10889631 is 13698801.

10889631 is a `hidden beast` number, since 10 + 8 + 8 + 9 + 631 = 666.

It is not a de Polignac number, because 10889631 - 2³ = 10889623 is a prime.

It is a super-2 number, since 2×10889631² = 237168126632322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10889651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 604971 + ... + 604988.

It is an arithmetic number, because the mean of its divisors is an integer number (2621580).

Almost surely, 2^10889631 is an apocalyptic number.

10889631 is a deficient number, since it is larger than the sum of its proper divisors (4839849).

10889631 is a wasteful number, since it uses less digits than its factorization.

10889631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209965 (or 1209962 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 10889631 is about 3299.9440904355. The cubic root of 10889631 is about 221.6516938901.

The spelling of 10889631 in words is "ten million, eight hundred eighty-nine thousand, six hundred thirty-one".