91626620 has 12 divisors (see below), whose sum is σ = 192415944. Its totient is φ = 36650640.

The previous prime is 91626611. The next prime is 91626629. The reversal of 91626620 is 2662619.

It is an interprime number because it is at equal distance from previous prime (91626611) and next prime (91626629).

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91626629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2290646 + ... + 2290685.

It is an arithmetic number, because the mean of its divisors is an integer number (16034662).

Almost surely, 2^91626620 is an apocalyptic number.

It is an amenable number.

91626620 is an abundant number, since it is smaller than the sum of its proper divisors (100789324).

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

91626620 is a wasteful number, since it uses less digits than its factorization.

91626620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4581340 (or 4581338 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 91626620 is about 9572.1794801393. The cubic root of 91626620 is about 450.8242014392.

The spelling of 91626620 in words is "ninety-one million, six hundred twenty-six thousand, six hundred twenty".