64653426 has 24 divisors (see below), whose sum is σ = 140266620. Its totient is φ = 21522816.

The previous prime is 64653419. The next prime is 64653469. The reversal of 64653426 is 62435646.

64653426 is a `hidden beast` number, since 646 + 5 + 3 + 4 + 2 + 6 = 666.

64653426 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 63441225 + 1212201 = 7965^2 + 1101^2 .

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 11 ways as a sum of consecutive naturals, for example, 15270 + ... + 19038.

Almost surely, 2^64653426 is an apocalyptic number.

64653426 is an abundant number, since it is smaller than the sum of its proper divisors (75613194).

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

64653426 is a wasteful number, since it uses less digits than its factorization.

64653426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4730 (or 4727 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 64653426 is about 8040.7354141272. The cubic root of 64653426 is about 401.3566973947.

The spelling of 64653426 in words is "sixty-four million, six hundred fifty-three thousand, four hundred twenty-six".