64790922 has 64 divisors (see below), whose sum is σ = 153609984. Its totient is φ = 17832960.

The previous prime is 64790911. The next prime is 64790939. The reversal of 64790922 is 22909746.

64790922 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×64790922² = 8395727147220168, 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 31 ways as a sum of consecutive naturals, for example, 268722 + ... + 268962.

It is an arithmetic number, because the mean of its divisors is an integer number (2400156).

Almost surely, 2^64790922 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64790922, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76804992).

64790922 is an abundant number, since it is smaller than the sum of its proper divisors (88819062).

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

64790922 is a wasteful number, since it uses less digits than its factorization.

64790922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 64790922 is about 8049.2808374413. The cubic root of 64790922 is about 401.6410126538.

The spelling of 64790922 in words is "sixty-four million, seven hundred ninety thousand, nine hundred twenty-two".