7697979 has 6 divisors (see below), whose sum is σ = 11119316. Its totient is φ = 5131980.

The previous prime is 7697971. The next prime is 7697993. The reversal of 7697979 is 9797967.

It is not a de Polignac number, because 7697979 - 2³ = 7697971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7697971) 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, 427657 + ... + 427674.

Almost surely, 2^7697979 is an apocalyptic number.

7697979 is a deficient number, since it is larger than the sum of its proper divisors (3421337).

7697979 is a wasteful number, since it uses less digits than its factorization.

7697979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855337 (or 855334 counting only the distinct ones).

The product of its digits is 1500282, while the sum is 54.

The square root of 7697979 is about 2774.5232022818. The cubic root of 7697979 is about 197.4508043894.

The spelling of 7697979 in words is "seven million, six hundred ninety-seven thousand, nine hundred seventy-nine".