91772076 has 24 divisors (see below), whose sum is σ = 233601984. Its totient is φ = 27809680.

The previous prime is 91772029. The next prime is 91772113. The reversal of 91772076 is 67027719.

It is a super-2 number, since 2×91772076² = 16844227866699552, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 347490 + ... + 347753.

It is an arithmetic number, because the mean of its divisors is an integer number (9733416).

Almost surely, 2^91772076 is an apocalyptic number.

It is an amenable number.

91772076 is an abundant number, since it is smaller than the sum of its proper divisors (141829908).

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

91772076 is a wasteful number, since it uses less digits than its factorization.

91772076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695261 (or 695259 counting only the distinct ones).

The product of its (nonzero) digits is 37044, while the sum is 39.

The square root of 91772076 is about 9579.7743188449. The cubic root of 91772076 is about 451.0626343886.

The spelling of 91772076 in words is "ninety-one million, seven hundred seventy-two thousand, seventy-six".