97815465 has 64 divisors (see below), whose sum is σ = 191232000. Its totient is φ = 47044800.

The previous prime is 97815461. The next prime is 97815469. The reversal of 97815465 is 56451879.

It is an interprime number because it is at equal distance from previous prime (97815461) and next prime (97815469).

It is not a de Polignac number, because 97815465 - 2² = 97815461 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 97815465.

It is not an unprimeable number, because it can be changed into a prime (97815461) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 295350 + ... + 295680.

It is an arithmetic number, because the mean of its divisors is an integer number (2988000).

Almost surely, 2^97815465 is an apocalyptic number.

It is an amenable number.

97815465 is a deficient number, since it is larger than the sum of its proper divisors (93416535).

97815465 is a wasteful number, since it uses less digits than its factorization.

97815465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555 (or 549 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 97815465 is about 9890.1701198715. The cubic root of 97815465 is about 460.7540640923.

The spelling of 97815465 in words is "ninety-seven million, eight hundred fifteen thousand, four hundred sixty-five".