64287964 has 12 divisors (see below), whose sum is σ = 121158184. Its totient is φ = 29671344.

The previous prime is 64287953. The next prime is 64287973. The reversal of 64287964 is 46978246.

It is a happy number.

It is a super-3 number, since 3×64287964³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 618102 + ... + 618205.

Almost surely, 2^64287964 is an apocalyptic number.

It is an amenable number.

64287964 is a deficient number, since it is larger than the sum of its proper divisors (56870220).

64287964 is a wasteful number, since it uses less digits than its factorization.

64287964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236324 (or 1236322 counting only the distinct ones).

The product of its digits is 580608, while the sum is 46.

The square root of 64287964 is about 8017.9775504799. The cubic root of 64287964 is about 400.5990274674.

The spelling of 64287964 in words is "sixty-four million, two hundred eighty-seven thousand, nine hundred sixty-four".