64435812 has 24 divisors (see below), whose sum is σ = 171829056. Its totient is φ = 18410208.

The previous prime is 64435807. The next prime is 64435823. The reversal of 64435812 is 21853446.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383463 + ... + 383630.

It is an arithmetic number, because the mean of its divisors is an integer number (7159544).

Almost surely, 2^64435812 is an apocalyptic number.

It is an amenable number.

64435812 is an abundant number, since it is smaller than the sum of its proper divisors (107393244).

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

64435812 is a wasteful number, since it uses less digits than its factorization.

64435812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767107 (or 767105 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 64435812 is about 8027.1920370700. The cubic root of 64435812 is about 400.9058885328.

The spelling of 64435812 in words is "sixty-four million, four hundred thirty-five thousand, eight hundred twelve".