97891954 has 8 divisors (see below), whose sum is σ = 149608620. Its totient is φ = 48022416.

The previous prime is 97891939. The next prime is 97891961. The reversal of 97891954 is 45919879.

It can be written as a sum of positive squares in 2 ways, for example, as 90725625 + 7166329 = 9525^2 + 2677^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 461649 + ... + 461860.

Almost surely, 2^97891954 is an apocalyptic number.

97891954 is a deficient number, since it is larger than the sum of its proper divisors (51716666).

97891954 is a wasteful number, since it uses less digits than its factorization.

97891954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923564.

The product of its digits is 816480, while the sum is 52.

The square root of 97891954 is about 9894.0362845504. The cubic root of 97891954 is about 460.8741317978.

The spelling of 97891954 in words is "ninety-seven million, eight hundred ninety-one thousand, nine hundred fifty-four".