99228578 has 16 divisors (see below), whose sum is σ = 157864896. Its totient is φ = 46677840.

The previous prime is 99228559. The next prime is 99228581. The reversal of 99228578 is 87582299.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14876 + ... + 20487.

It is an arithmetic number, because the mean of its divisors is an integer number (9866556).

Almost surely, 2^99228578 is an apocalyptic number.

99228578 is a deficient number, since it is larger than the sum of its proper divisors (58636318).

99228578 is a wasteful number, since it uses less digits than its factorization.

99228578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35449.

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

The square root of 99228578 is about 9961.3542252045. The cubic root of 99228578 is about 462.9622598132.

The spelling of 99228578 in words is "ninety-nine million, two hundred twenty-eight thousand, five hundred seventy-eight".