91479800 has 24 divisors (see below), whose sum is σ = 212691000. Its totient is φ = 36591840.

The previous prime is 91479797. The next prime is 91479811. The reversal of 91479800 is 897419.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 228500 + ... + 228899.

It is an arithmetic number, because the mean of its divisors is an integer number (8862125).

Almost surely, 2^91479800 is an apocalyptic number.

It is an amenable number.

91479800 is an abundant number, since it is smaller than the sum of its proper divisors (121211200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91479800 is a wasteful number, since it uses less digits than its factorization.

91479800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457415 (or 457406 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 91479800 is about 9564.5073056588. The cubic root of 91479800 is about 450.5832765695.

The spelling of 91479800 in words is "ninety-one million, four hundred seventy-nine thousand, eight hundred".