97679709 has 8 divisors (see below), whose sum is σ = 144710720. Its totient is φ = 65119788.

The previous prime is 97679669. The next prime is 97679713. The reversal of 97679709 is 90797679.

It is not a de Polignac number, because 97679709 - 2⁷ = 97679581 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97671709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1808857 + ... + 1808910.

It is an arithmetic number, because the mean of its divisors is an integer number (18088840).

Almost surely, 2^97679709 is an apocalyptic number.

It is an amenable number.

97679709 is a deficient number, since it is larger than the sum of its proper divisors (47031011).

97679709 is a wasteful number, since it uses less digits than its factorization.

97679709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3617776 (or 3617770 counting only the distinct ones).

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

The square root of 97679709 is about 9883.3045586990. The cubic root of 97679709 is about 460.5408084876.

The spelling of 97679709 in words is "ninety-seven million, six hundred seventy-nine thousand, seven hundred nine".