64065900 has 36 divisors (see below), whose sum is σ = 185364872. Its totient is φ = 17084160.

The previous prime is 64065889. The next prime is 64065961. The reversal of 64065900 is 956046.

64065900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106477 + ... + 107076.

Almost surely, 2^64065900 is an apocalyptic number.

64065900 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64065900 is an abundant number, since it is smaller than the sum of its proper divisors (121298972).

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

64065900 is a wasteful number, since it uses less digits than its factorization.

64065900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213570 (or 213563 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 64065900 is about 8004.1176902892. The cubic root of 64065900 is about 400.1372445711.

The spelling of 64065900 in words is "sixty-four million, sixty-five thousand, nine hundred".