91208796 has 72 divisors (see below), whose sum is σ = 249224976. Its totient is φ = 25885440.

The previous prime is 91208773. The next prime is 91208837. The reversal of 91208796 is 69780219.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106000 + ... + 106856.

It is an arithmetic number, because the mean of its divisors is an integer number (3461458).

Almost surely, 2^91208796 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 91208796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124612488).

91208796 is an abundant number, since it is smaller than the sum of its proper divisors (158016180).

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

91208796 is a wasteful number, since it uses less digits than its factorization.

91208796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059 (or 1050 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 91208796 is about 9550.3296278191. The cubic root of 91208796 is about 450.1378935434.

The spelling of 91208796 in words is "ninety-one million, two hundred eight thousand, seven hundred ninety-six".