91036764 has 192 divisors, whose sum is σ = 297292800. Its totient is φ = 23452416.

The previous prime is 91036753. The next prime is 91036811. The reversal of 91036764 is 46763019.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 579774 + ... + 579930.

It is an arithmetic number, because the mean of its divisors is an integer number (1548400).

Almost surely, 2^91036764 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 91036764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148646400).

91036764 is an abundant number, since it is smaller than the sum of its proper divisors (206256036).

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

91036764 is a wasteful number, since it uses less digits than its factorization.

91036764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 91036764 is about 9541.3187767729. The cubic root of 91036764 is about 449.8547086504.

The spelling of 91036764 in words is "ninety-one million, thirty-six thousand, seven hundred sixty-four".