64449315 has 24 divisors (see below), whose sum is σ = 127671648. Its totient is φ = 29462400.

The previous prime is 64449293. The next prime is 64449337. The reversal of 64449315 is 51394446.

64449315 is a `hidden beast` number, since 644 + 4 + 9 + 3 + 1 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (64449293) and next prime (64449337).

It is not a de Polignac number, because 64449315 - 2⁹ = 64448803 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64449315.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101986 + ... + 102615.

It is an arithmetic number, because the mean of its divisors is an integer number (5319652).

Almost surely, 2^64449315 is an apocalyptic number.

64449315 is a deficient number, since it is larger than the sum of its proper divisors (63222333).

64449315 is a wasteful number, since it uses less digits than its factorization.

64449315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204619 (or 204616 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 64449315 is about 8028.0330716808. The cubic root of 64449315 is about 400.9338908396.

The spelling of 64449315 in words is "sixty-four million, four hundred forty-nine thousand, three hundred fifteen".