67312764 has 36 divisors (see below), whose sum is σ = 170922024. Its totient is φ = 22336032.

The previous prime is 67312753. The next prime is 67312783. The reversal of 67312764 is 46721376.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4054 + ... + 12290.

It is an arithmetic number, because the mean of its divisors is an integer number (4747834).

Almost surely, 2^67312764 is an apocalyptic number.

It is an amenable number.

67312764 is an abundant number, since it is smaller than the sum of its proper divisors (103609260).

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

67312764 is a wasteful number, since it uses less digits than its factorization.

67312764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8474 (or 8469 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 67312764 is about 8204.4356295848. The cubic root of 67312764 is about 406.7858222305.

The spelling of 67312764 in words is "sixty-seven million, three hundred twelve thousand, seven hundred sixty-four".