91616652 has 18 divisors (see below), whose sum is σ = 231586628. Its totient is φ = 30538872.

The previous prime is 91616647. The next prime is 91616663. The reversal of 91616652 is 25661619.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×91616652² = 16787221847378208, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) 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 (36), and also a Moran number because the ratio is a prime number: 2544907 = 91616652 / (9 + 1 + 6 + 1 + 6 + 6 + 5 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1272418 + ... + 1272489.

Almost surely, 2^91616652 is an apocalyptic number.

It is an amenable number.

91616652 is an abundant number, since it is smaller than the sum of its proper divisors (139969976).

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

91616652 is a wasteful number, since it uses less digits than its factorization.

91616652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2544917 (or 2544912 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 91616652 is about 9571.6587904083. The cubic root of 91616652 is about 450.8078525564.

The spelling of 91616652 in words is "ninety-one million, six hundred sixteen thousand, six hundred fifty-two".