97618263 has 16 divisors (see below), whose sum is σ = 136663680. Its totient is φ = 61893216.

The previous prime is 97618259. The next prime is 97618271. The reversal of 97618263 is 36281679.

It is a happy number.

It is not a de Polignac number, because 97618263 - 2² = 97618259 is a prime.

It is a super-2 number, since 2×97618263² = 19058650542274338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97618243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2545 + ... + 14202.

It is an arithmetic number, because the mean of its divisors is an integer number (8541480).

Almost surely, 2^97618263 is an apocalyptic number.

97618263 is a deficient number, since it is larger than the sum of its proper divisors (39045417).

97618263 is a wasteful number, since it uses less digits than its factorization.

97618263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16846.

The product of its digits is 108864, while the sum is 42.

The square root of 97618263 is about 9880.1954940173. The cubic root of 97618263 is about 460.4442195896. Note that the first 3 decimals are identical.

The spelling of 97618263 in words is "ninety-seven million, six hundred eighteen thousand, two hundred sixty-three".