97761615 has 48 divisors (see below), whose sum is σ = 189900288. Its totient is φ = 42740544.

The previous prime is 97761583. The next prime is 97761617. The reversal of 97761615 is 51616779.

It is not a de Polignac number, because 97761615 - 2⁵ = 97761583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97761617) 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 47 ways as a sum of consecutive naturals, for example, 14014 + ... + 19796.

It is an arithmetic number, because the mean of its divisors is an integer number (3956256).

Almost surely, 2^97761615 is an apocalyptic number.

97761615 is a deficient number, since it is larger than the sum of its proper divisors (92138673).

97761615 is a wasteful number, since it uses less digits than its factorization.

97761615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5828 (or 5821 counting only the distinct ones).

The product of its digits is 79380, while the sum is 42.

The square root of 97761615 is about 9887.4473449925. The cubic root of 97761615 is about 460.6694961394.

The spelling of 97761615 in words is "ninety-seven million, seven hundred sixty-one thousand, six hundred fifteen".