10977681 has 16 divisors (see below), whose sum is σ = 17196480. Its totient is φ = 6141120.

The previous prime is 10977677. The next prime is 10977683. The reversal of 10977681 is 18677901.

It is not a de Polignac number, because 10977681 - 2² = 10977677 is a prime.

It is a super-2 number, since 2×10977681² = 241018960275522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (10977683) 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, 12366 + ... + 13223.

It is an arithmetic number, because the mean of its divisors is an integer number (1074780).

Almost surely, 2^10977681 is an apocalyptic number.

10977681 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10977681 is a deficient number, since it is larger than the sum of its proper divisors (6218799).

10977681 is a wasteful number, since it uses less digits than its factorization.

10977681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25616.

The product of its (nonzero) digits is 21168, while the sum is 39.

The square root of 10977681 is about 3313.2583660198. The cubic root of 10977681 is about 222.2474920245.

It can be divided in two parts, 1097 and 7681, that added together give a palindrome (8778).

The spelling of 10977681 in words is "ten million, nine hundred seventy-seven thousand, six hundred eighty-one".