97515613 has 8 divisors (see below), whose sum is σ = 106797600. Its totient is φ = 88488048.

The previous prime is 97515569. The next prime is 97515617. The reversal of 97515613 is 31651579.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 97515613 - 2¹⁷ = 97384541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97515617) 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, 62803 + ... + 64336.

It is an arithmetic number, because the mean of its divisors is an integer number (13349700).

Almost surely, 2^97515613 is an apocalyptic number.

It is an amenable number.

97515613 is a deficient number, since it is larger than the sum of its proper divisors (9281987).

97515613 is a wasteful number, since it uses less digits than its factorization.

97515613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127211.

The product of its digits is 28350, while the sum is 37.

The square root of 97515613 is about 9874.9993924050. Note that the first 3 decimals coincide. The cubic root of 97515613 is about 460.2827703747.

The spelling of 97515613 in words is "ninety-seven million, five hundred fifteen thousand, six hundred thirteen".