97916218 has 8 divisors (see below), whose sum is σ = 146934612. Its totient is φ = 48938016.

The previous prime is 97916213. The next prime is 97916237. The reversal of 97916218 is 81261979.

It can be written as a sum of positive squares in 2 ways, for example, as 66634569 + 31281649 = 8163^2 + 5593^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (97916213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2955 + ... + 14302.

Almost surely, 2^97916218 is an apocalyptic number.

97916218 is a deficient number, since it is larger than the sum of its proper divisors (49018394).

97916218 is a wasteful number, since it uses less digits than its factorization.

97916218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20096.

The product of its digits is 54432, while the sum is 43.

The square root of 97916218 is about 9895.2624017759. The cubic root of 97916218 is about 460.9122068580.

The spelling of 97916218 in words is "ninety-seven million, nine hundred sixteen thousand, two hundred eighteen".