91822064 has 20 divisors (see below), whose sum is σ = 178261656. Its totient is φ = 45819072.

The previous prime is 91822063. The next prime is 91822097. The reversal of 91822064 is 46022819.

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 self number, because there is not a number n which added to its sum of digits gives 91822064.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91822061) 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, 2882 + ... + 13854.

Almost surely, 2^91822064 is an apocalyptic number.

It is an amenable number.

91822064 is a deficient number, since it is larger than the sum of its proper divisors (86439592).

91822064 is a wasteful number, since it uses less digits than its factorization.

91822064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11504 (or 11498 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 91822064 is about 9582.3830021556. The cubic root of 91822064 is about 451.1445170531.

The spelling of 91822064 in words is "ninety-one million, eight hundred twenty-two thousand, sixty-four".