10640977 has 4 divisors (see below), whose sum is σ = 10648816. Its totient is φ = 10633140.

The previous prime is 10640957. The next prime is 10641011. The reversal of 10640977 is 77904601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 77904601 = 8191 ⋅9511.

It is a cyclic number.

It is not a de Polignac number, because 10640977 - 2¹⁵ = 10608209 is a prime.

It is a super-2 number, since 2×10640977² = 226460783029058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10640947) 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 3 ways as a sum of consecutive naturals, for example, 1299 + ... + 4792.

It is an arithmetic number, because the mean of its divisors is an integer number (2662204).

Almost surely, 2^10640977 is an apocalyptic number.

It is an amenable number.

10640977 is a deficient number, since it is larger than the sum of its proper divisors (7839).

10640977 is an equidigital number, since it uses as much as digits as its factorization.

10640977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7838.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 10640977 is about 3262.0510419060. The cubic root of 10640977 is about 219.9516215937.

The spelling of 10640977 in words is "ten million, six hundred forty thousand, nine hundred seventy-seven".