97709479 has 12 divisors (see below), whose sum is σ = 113886000. Its totient is φ = 83586048.

The previous prime is 97709471. The next prime is 97709501. The reversal of 97709479 is 97490779.

It is not a de Polignac number, because 97709479 - 2³ = 97709471 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 (97709471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27687 + ... + 31015.

It is an arithmetic number, because the mean of its divisors is an integer number (9490500).

Almost surely, 2^97709479 is an apocalyptic number.

97709479 is a deficient number, since it is larger than the sum of its proper divisors (16176521).

97709479 is a wasteful number, since it uses less digits than its factorization.

97709479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3942 (or 3935 counting only the distinct ones).

The product of its (nonzero) digits is 1000188, while the sum is 52.

The square root of 97709479 is about 9884.8105191754. The cubic root of 97709479 is about 460.5875903198.

The spelling of 97709479 in words is "ninety-seven million, seven hundred nine thousand, four hundred seventy-nine".