64534312 has 32 divisors (see below), whose sum is σ = 132261120. Its totient is φ = 29387520.

The previous prime is 64534303. The next prime is 64534319. The reversal of 64534312 is 21343546.

It is not an unprimeable number, because it can be changed into a prime (64534319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3438 + ... + 11869.

It is an arithmetic number, because the mean of its divisors is an integer number (4133160).

Almost surely, 2^64534312 is an apocalyptic number.

64534312 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

64534312 is an abundant number, since it is smaller than the sum of its proper divisors (67726808).

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

64534312 is a wasteful number, since it uses less digits than its factorization.

64534312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15361 (or 15357 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

The square root of 64534312 is about 8033.3250898990. The cubic root of 64534312 is about 401.1100665310.

Adding to 64534312 its reverse (21343546), we get a palindrome (85877858).

It can be divided in two parts, 64534 and 312, that added together give a palindrome (64846).

The spelling of 64534312 in words is "sixty-four million, five hundred thirty-four thousand, three hundred twelve".