7697979738 has 12 divisors (see below), whose sum is σ = 16678956138. Its totient is φ = 2565993240.

The previous prime is 7697979727. The next prime is 7697979761. The reversal of 7697979738 is 8379797967.

It can be written as a sum of positive squares in only one way, i.e., 6033094929 + 1664884809 = 77673^2 + 40803^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 213832753 + ... + 213832788.

Almost surely, 2^7697979738 is an apocalyptic number.

7697979738 is an abundant number, since it is smaller than the sum of its proper divisors (8980976400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7697979738 is a wasteful number, since it uses less digits than its factorization.

7697979738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427665549 (or 427665546 counting only the distinct ones).

The product of its digits is 252047376, while the sum is 72.

The square root of 7697979738 is about 87738.1316076425. The cubic root of 7697979738 is about 1974.5081069926.

The spelling of 7697979738 in words is "seven billion, six hundred ninety-seven million, nine hundred seventy-nine thousand, seven hundred thirty-eight".