97535665 has 16 divisors (see below), whose sum is σ = 119139408. Its totient is φ = 76640256.

The previous prime is 97535639. The next prime is 97535687. The reversal of 97535665 is 56653579.

It can be written as a sum of positive squares in 8 ways, for example, as 59536 + 97476129 = 244^2 + 9873^2 .

It is a cyclic number.

It is not a de Polignac number, because 97535665 - 2¹⁵ = 97502897 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128467 + ... + 129223.

It is an arithmetic number, because the mean of its divisors is an integer number (7446213).

Almost surely, 2^97535665 is an apocalyptic number.

It is an amenable number.

97535665 is a deficient number, since it is larger than the sum of its proper divisors (21603743).

97535665 is a wasteful number, since it uses less digits than its factorization.

97535665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188.

The product of its digits is 850500, while the sum is 46.

The square root of 97535665 is about 9876.0146314189. The cubic root of 97535665 is about 460.3143173146.

The spelling of 97535665 in words is "ninety-seven million, five hundred thirty-five thousand, six hundred sixty-five".