91816752 has 40 divisors (see below), whose sum is σ = 237951040. Its totient is φ = 30507840.

The previous prime is 91816729. The next prime is 91816757. The reversal of 91816752 is 25761819.

It is a self number, because there is not a number n which added to its sum of digits gives 91816752.

It is not an unprimeable number, because it can be changed into a prime (91816757) 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, 12999 + ... + 18777.

It is an arithmetic number, because the mean of its divisors is an integer number (5948776).

Almost surely, 2^91816752 is an apocalyptic number.

It is an amenable number.

91816752 is an abundant number, since it is smaller than the sum of its proper divisors (146134288).

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

91816752 is a wasteful number, since it uses less digits than its factorization.

91816752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6121 (or 6115 counting only the distinct ones).

The product of its digits is 30240, while the sum is 39.

The square root of 91816752 is about 9582.1058228346. The cubic root of 91816752 is about 451.1358171619.

The spelling of 91816752 in words is "ninety-one million, eight hundred sixteen thousand, seven hundred fifty-two".