64423312 has 20 divisors (see below), whose sum is σ = 125022256. Its totient is φ = 32159520.

The previous prime is 64423283. The next prime is 64423313. The reversal of 64423312 is 21332446.

It is not an unprimeable number, because it can be changed into a prime (64423313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8143 + ... + 13969.

Almost surely, 2^64423312 is an apocalyptic number.

It is an amenable number.

64423312 is a deficient number, since it is larger than the sum of its proper divisors (60598944).

64423312 is a wasteful number, since it uses less digits than its factorization.

64423312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6526 (or 6520 counting only the distinct ones).

The product of its digits is 3456, while the sum is 25.

The square root of 64423312 is about 8026.4133957827. The cubic root of 64423312 is about 400.8799627444.

Adding to 64423312 its reverse (21332446), we get a palindrome (85755758).

The spelling of 64423312 in words is "sixty-four million, four hundred twenty-three thousand, three hundred twelve".