97928794 has 4 divisors (see below), whose sum is σ = 146893194. Its totient is φ = 48964396.

The previous prime is 97928773. The next prime is 97928801. The reversal of 97928794 is 49782979.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49782979 = 41 ⋅1214219.

It can be written as a sum of positive squares in only one way, i.e., 74046025 + 23882769 = 8605^2 + 4887^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24482197 + ... + 24482200.

Almost surely, 2^97928794 is an apocalyptic number.

97928794 is a deficient number, since it is larger than the sum of its proper divisors (48964400).

97928794 is a wasteful number, since it uses less digits than its factorization.

97928794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48964399.

The product of its digits is 2286144, while the sum is 55.

The square root of 97928794 is about 9895.8978369828. The cubic root of 97928794 is about 460.9319386379.

The spelling of 97928794 in words is "ninety-seven million, nine hundred twenty-eight thousand, seven hundred ninety-four".