90579628 has 24 divisors (see below), whose sum is σ = 161335440. Its totient is φ = 44491200.

The previous prime is 90579623. The next prime is 90579647. The reversal of 90579628 is 82697509.

It is not an unprimeable number, because it can be changed into a prime (90579623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55350 + ... + 56962.

It is an arithmetic number, because the mean of its divisors is an integer number (6722310).

Almost surely, 2^90579628 is an apocalyptic number.

It is an amenable number.

90579628 is a deficient number, since it is larger than the sum of its proper divisors (70755812).

90579628 is a wasteful number, since it uses less digits than its factorization.

90579628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1857 (or 1855 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 90579628 is about 9517.3330297936. Note that the first 3 decimals coincide. The cubic root of 90579628 is about 449.1004713960.

The spelling of 90579628 in words is "ninety million, five hundred seventy-nine thousand, six hundred twenty-eight".