91788962 has 8 divisors (see below), whose sum is σ = 144930000. Its totient is φ = 43478964.

The previous prime is 91788941. The next prime is 91789081. The reversal of 91788962 is 26988719.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 91788962.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1207712 + ... + 1207787.

It is an arithmetic number, because the mean of its divisors is an integer number (18116250).

Almost surely, 2^91788962 is an apocalyptic number.

91788962 is a deficient number, since it is larger than the sum of its proper divisors (53141038).

91788962 is a wasteful number, since it uses less digits than its factorization.

91788962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2415520.

The product of its digits is 435456, while the sum is 50.

The square root of 91788962 is about 9580.6556143095. The cubic root of 91788962 is about 451.0902977654.

The spelling of 91788962 in words is "ninety-one million, seven hundred eighty-eight thousand, nine hundred sixty-two".