64704330 has 24 divisors (see below), whose sum is σ = 168231492. Its totient is φ = 17254464.

The previous prime is 64704323. The next prime is 64704331. The reversal of 64704330 is 3340746.

It can be written as a sum of positive squares in 2 ways, for example, as 62204769 + 2499561 = 7887^2 + 1581^2 .

It is a junction number, because it is equal to n+sod(n) for n = 64704294 and 64704303.

It is not an unprimeable number, because it can be changed into a prime (64704331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 359379 + ... + 359558.

Almost surely, 2^64704330 is an apocalyptic number.

64704330 is an abundant number, since it is smaller than the sum of its proper divisors (103527162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64704330 is a wasteful number, since it uses less digits than its factorization.

64704330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718950 (or 718947 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 64704330 is about 8043.9001734233. The cubic root of 64704330 is about 401.4620040170.

The spelling of 64704330 in words is "sixty-four million, seven hundred four thousand, three hundred thirty".