97979629 has 6 divisors (see below), whose sum is σ = 107696750. Its totient is φ = 89072280.

The previous prime is 97979621. The next prime is 97979633. The reversal of 97979629 is 92697979.

It can be written as a sum of positive squares in only one way, i.e., 80964004 + 17015625 = 8998^2 + 4125^2 .

It is not a de Polignac number, because 97979629 - 2³ = 97979621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97979621) 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, 404754 + ... + 404995.

Almost surely, 2^97979629 is an apocalyptic number.

It is an amenable number.

97979629 is a deficient number, since it is larger than the sum of its proper divisors (9717121).

97979629 is a wasteful number, since it uses less digits than its factorization.

97979629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809771 (or 809760 counting only the distinct ones).

The product of its digits is 3857868, while the sum is 58.

The square root of 97979629 is about 9898.4659922636. The cubic root of 97979629 is about 461.0116816868.

It can be divided in two parts, 979 and 79629, that added together give a palindrome (80608).

The spelling of 97979629 in words is "ninety-seven million, nine hundred seventy-nine thousand, six hundred twenty-nine".