64351604 has 12 divisors (see below), whose sum is σ = 113200164. Its totient is φ = 32008704.

The previous prime is 64351603. The next prime is 64351627. The reversal of 64351604 is 40615346.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 28111204 + 36240400 = 5302^2 + 6020^2 .

It is a super-2 number, since 2×64351604² = 8282257874745632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64351603) by changing a digit.

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, 40907 + ... + 42450.

It is an arithmetic number, because the mean of its divisors is an integer number (9433347).

Almost surely, 2^64351604 is an apocalyptic number.

It is an amenable number.

64351604 is a deficient number, since it is larger than the sum of its proper divisors (48848560).

64351604 is a wasteful number, since it uses less digits than its factorization.

64351604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83554 (or 83552 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 64351604 is about 8021.9451506477. The cubic root of 64351604 is about 400.7311709914.

The spelling of 64351604 in words is "sixty-four million, three hundred fifty-one thousand, six hundred four".