64210764 has 12 divisors (see below), whose sum is σ = 149825144. Its totient is φ = 21403584.

The previous prime is 64210763. The next prime is 64210777. The reversal of 64210764 is 46701246.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (64210763) 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, 2675437 + ... + 2675460.

Almost surely, 2^64210764 is an apocalyptic number.

It is an amenable number.

64210764 is an abundant number, since it is smaller than the sum of its proper divisors (85614380).

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

64210764 is a wasteful number, since it uses less digits than its factorization.

64210764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5350904 (or 5350902 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 64210764 is about 8013.1619227369. The cubic root of 64210764 is about 400.4386105429.

The spelling of 64210764 in words is "sixty-four million, two hundred ten thousand, seven hundred sixty-four".