10979649 has 6 divisors (see below), whose sum is σ = 15859506. Its totient is φ = 7319760.

The previous prime is 10979629. The next prime is 10979651. The reversal of 10979649 is 94697901.

It can be written as a sum of positive squares in only one way, i.e., 9000000 + 1979649 = 3000^2 + 1407^2 .

It is not a de Polignac number, because 10979649 - 2⁸ = 10979393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10979629) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 609972 + ... + 609989.

It is an arithmetic number, because the mean of its divisors is an integer number (2643251).

Almost surely, 2^10979649 is an apocalyptic number.

It is an amenable number.

10979649 is a deficient number, since it is larger than the sum of its proper divisors (4879857).

10979649 is a wasteful number, since it uses less digits than its factorization.

10979649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219967 (or 1219964 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 10979649 is about 3313.5553413215. Note that the first 3 decimals coincide. The cubic root of 10979649 is about 222.2607722103.

It can be divided in two parts, 10979 and 649, that added together give a triangular number (11628 = T₁₅₂).

The spelling of 10979649 in words is "ten million, nine hundred seventy-nine thousand, six hundred forty-nine".