91626630 has 16 divisors (see below), whose sum is σ = 219903984. Its totient is φ = 24433760.

The previous prime is 91626629. The next prime is 91626653. The reversal of 91626630 is 3662619.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 91626591 and 91626600.

It is a congruent number.

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, 1527081 + ... + 1527140.

It is an arithmetic number, because the mean of its divisors is an integer number (13743999).

Almost surely, 2^91626630 is an apocalyptic number.

91626630 is an abundant number, since it is smaller than the sum of its proper divisors (128277354).

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

91626630 is a wasteful number, since it uses less digits than its factorization.

91626630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3054231.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 91626630 is about 9572.1800024864. The cubic root of 91626630 is about 450.8242178399.

The spelling of 91626630 in words is "ninety-one million, six hundred twenty-six thousand, six hundred thirty".