91004984 has 32 divisors (see below), whose sum is σ = 205276800. Its totient is φ = 36948960.

The previous prime is 91004983. The next prime is 91004989. The reversal of 91004984 is 48940019.

It is a super-2 number, since 2×91004984² = 16563814225680512, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91004983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41702 + ... + 43829.

It is an arithmetic number, because the mean of its divisors is an integer number (6414900).

Almost surely, 2^91004984 is an apocalyptic number.

It is an amenable number.

91004984 is an abundant number, since it is smaller than the sum of its proper divisors (114271816).

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

91004984 is a wasteful number, since it uses less digits than its factorization.

91004984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85563 (or 85559 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 91004984 is about 9539.6532431740. The cubic root of 91004984 is about 449.8023560041.

The spelling of 91004984 in words is "ninety-one million, four thousand, nine hundred eighty-four".