91196400 has 60 divisors (see below), whose sum is σ = 292136312. Its totient is φ = 24318720.

The previous prime is 91196377. The next prime is 91196401. The reversal of 91196400 is 469119.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91196401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36799 + ... + 39198.

Almost surely, 2^91196400 is an apocalyptic number.

It is an amenable number.

91196400 is an abundant number, since it is smaller than the sum of its proper divisors (200939912).

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

91196400 is a wasteful number, since it uses less digits than its factorization.

91196400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76018 (or 76007 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 91196400 is about 9549.6806229318. The cubic root of 91196400 is about 450.1175001809.

The spelling of 91196400 in words is "ninety-one million, one hundred ninety-six thousand, four hundred".