64900572 has 48 divisors (see below), whose sum is σ = 172392192. Its totient is φ = 18810880.

The previous prime is 64900571. The next prime is 64900573. The reversal of 64900572 is 27500946.

It is an interprime number because it is at equal distance from previous prime (64900571) and next prime (64900573).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64900571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7653 + ... + 13724.

It is an arithmetic number, because the mean of its divisors is an integer number (3591504).

Almost surely, 2^64900572 is an apocalyptic number.

It is an amenable number.

64900572 is an abundant number, since it is smaller than the sum of its proper divisors (107491620).

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

64900572 is a wasteful number, since it uses less digits than its factorization.

64900572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21418 (or 21416 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 64900572 is about 8056.0891256242. The cubic root of 64900572 is about 401.8674595855.

The spelling of 64900572 in words is "sixty-four million, nine hundred thousand, five hundred seventy-two".