97908458 has 4 divisors (see below), whose sum is σ = 146862690. Its totient is φ = 48954228.

The previous prime is 97908449. The next prime is 97908469. The reversal of 97908458 is 85480979.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85480979 = 239 ⋅357661.

It can be written as a sum of positive squares in only one way, i.e., 66961489 + 30946969 = 8183^2 + 5563^2 .

It is a super-2 number, since 2×97908458² = 19172132295875528, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24477113 + ... + 24477116.

Almost surely, 2^97908458 is an apocalyptic number.

97908458 is a deficient number, since it is larger than the sum of its proper divisors (48954232).

97908458 is a wasteful number, since it uses less digits than its factorization.

97908458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48954231.

The product of its (nonzero) digits is 725760, while the sum is 50.

The square root of 97908458 is about 9894.8702871741. The cubic root of 97908458 is about 460.9000305530.

The spelling of 97908458 in words is "ninety-seven million, nine hundred eight thousand, four hundred fifty-eight".