97071615 has 80 divisors (see below), whose sum is σ = 192570048. Its totient is φ = 46531584.

The previous prime is 97071607. The next prime is 97071617. The reversal of 97071615 is 51617079.

It is not a de Polignac number, because 97071615 - 2³ = 97071607 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97071615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97071617) 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 79 ways as a sum of consecutive naturals, for example, 158049 + ... + 158661.

Almost surely, 2^97071615 is an apocalyptic number.

97071615 is a deficient number, since it is larger than the sum of its proper divisors (95498433).

97071615 is a wasteful number, since it uses less digits than its factorization.

97071615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670 (or 661 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 36.

The square root of 97071615 is about 9852.4928317660. The cubic root of 97071615 is about 459.5831368354.

The spelling of 97071615 in words is "ninety-seven million, seventy-one thousand, six hundred fifteen".