64654388 has 12 divisors (see below), whose sum is σ = 115000452. Its totient is φ = 31797120.

The previous prime is 64654363. The next prime is 64654391. The reversal of 64654388 is 88345646.

64654388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2748964 + 61905424 = 1658^2 + 7868^2 .

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

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 3 ways as a sum of consecutive naturals, for example, 132245 + ... + 132732.

It is an arithmetic number, because the mean of its divisors is an integer number (9583371).

Almost surely, 2^64654388 is an apocalyptic number.

It is an amenable number.

64654388 is a deficient number, since it is larger than the sum of its proper divisors (50346064).

64654388 is a wasteful number, since it uses less digits than its factorization.

64654388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265042 (or 265040 counting only the distinct ones).

The product of its digits is 552960, while the sum is 44.

The square root of 64654388 is about 8040.7952343036. The cubic root of 64654388 is about 401.3586880251.

The spelling of 64654388 in words is "sixty-four million, six hundred fifty-four thousand, three hundred eighty-eight".