64215484 has 12 divisors (see below), whose sum is σ = 112575904. Its totient is φ = 32050944.

The previous prime is 64215467. The next prime is 64215491. The reversal of 64215484 is 48451246.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 11604 + ... + 16219.

Almost surely, 2^64215484 is an apocalyptic number.

It is an amenable number.

64215484 is a deficient number, since it is larger than the sum of its proper divisors (48360420).

64215484 is a wasteful number, since it uses less digits than its factorization.

64215484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28404 (or 28402 counting only the distinct ones).

The product of its digits is 30720, while the sum is 34.

The square root of 64215484 is about 8013.4564327761. The cubic root of 64215484 is about 400.4484221062.

The spelling of 64215484 in words is "sixty-four million, two hundred fifteen thousand, four hundred eighty-four".