64464784 has 10 divisors (see below), whose sum is σ = 124900550. Its totient is φ = 32232384.

The previous prime is 64464773. The next prime is 64464797. The reversal of 64464784 is 48746446.

It can be written as a sum of positive squares in only one way, i.e., 61968384 + 2496400 = 7872^2 + 1580^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 64464784.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2014509 + ... + 2014540.

It is an arithmetic number, because the mean of its divisors is an integer number (12490055).

Almost surely, 2^64464784 is an apocalyptic number.

It is an amenable number.

64464784 is a deficient number, since it is larger than the sum of its proper divisors (60435766).

64464784 is a wasteful number, since it uses less digits than its factorization.

64464784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4029057 (or 4029051 counting only the distinct ones).

The product of its digits is 516096, while the sum is 43.

The square root of 64464784 is about 8028.9964503666. The cubic root of 64464784 is about 400.9659653993.

The spelling of 64464784 in words is "sixty-four million, four hundred sixty-four thousand, seven hundred eighty-four".