64780604 has 24 divisors (see below), whose sum is σ = 135195648. Its totient is φ = 26555760.

The previous prime is 64780603. The next prime is 64780609. The reversal of 64780604 is 40608746.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64780603) 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, 49652 + ... + 50939.

It is an arithmetic number, because the mean of its divisors is an integer number (5633152).

Almost surely, 2^64780604 is an apocalyptic number.

It is an amenable number.

64780604 is an abundant number, since it is smaller than the sum of its proper divisors (70415044).

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

64780604 is a wasteful number, since it uses less digits than its factorization.

64780604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100625 (or 100623 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 64780604 is about 8048.6398850986. The cubic root of 64780604 is about 401.6196909838.

The spelling of 64780604 in words is "sixty-four million, seven hundred eighty thousand, six hundred four".