91554736 has 90 divisors (see below), whose sum is σ = 223765812. Its totient is φ = 36167040.

The previous prime is 91554733. The next prime is 91554737. The reversal of 91554736 is 63745519.

91554736 = 246² + 247² + ... + 661².

It is not an unprimeable number, because it can be changed into a prime (91554733) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 132151 + ... + 132841.

Almost surely, 2^91554736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91554736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111882906).

91554736 is an abundant number, since it is smaller than the sum of its proper divisors (132211076).

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

91554736 is a wasteful number, since it uses less digits than its factorization.

91554736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739 (or 713 counting only the distinct ones).

The product of its digits is 113400, while the sum is 40.

The square root of 91554736 is about 9568.4239036531. The cubic root of 91554736 is about 450.7062752827.

The spelling of 91554736 in words is "ninety-one million, five hundred fifty-four thousand, seven hundred thirty-six".