97651215 has 24 divisors (see below), whose sum is σ = 176623200. Its totient is φ = 49815744.

The previous prime is 97651187. The next prime is 97651219. The reversal of 97651215 is 51215679.

It is not a de Polignac number, because 97651215 - 2¹⁶ = 97585679 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97651215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97651219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46140 + ... + 48209.

It is an arithmetic number, because the mean of its divisors is an integer number (7359300).

Almost surely, 2^97651215 is an apocalyptic number.

97651215 is a deficient number, since it is larger than the sum of its proper divisors (78971985).

97651215 is a wasteful number, since it uses less digits than its factorization.

97651215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94383 (or 94380 counting only the distinct ones).

The product of its digits is 18900, while the sum is 36.

The square root of 97651215 is about 9881.8629316541. The cubic root of 97651215 is about 460.4960229120.

The spelling of 97651215 in words is "ninety-seven million, six hundred fifty-one thousand, two hundred fifteen".