64356212 has 12 divisors (see below), whose sum is σ = 113620836. Its totient is φ = 31893120.

The previous prime is 64356137. The next prime is 64356263. The reversal of 64356212 is 21265346.

It can be written as a sum of positive squares in 2 ways, for example, as 13147876 + 51208336 = 3626^2 + 7156^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70739 + ... + 71642.

It is an arithmetic number, because the mean of its divisors is an integer number (9468403).

Almost surely, 2^64356212 is an apocalyptic number.

It is an amenable number.

64356212 is a deficient number, since it is larger than the sum of its proper divisors (49264624).

64356212 is a wasteful number, since it uses less digits than its factorization.

64356212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142498 (or 142496 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

The square root of 64356212 is about 8022.2323576421. The cubic root of 64356212 is about 400.7407357629.

The spelling of 64356212 in words is "sixty-four million, three hundred fifty-six thousand, two hundred twelve".