64854444 has 12 divisors (see below), whose sum is σ = 151327064. Its totient is φ = 21618144.

The previous prime is 64854431. The next prime is 64854463. The reversal of 64854444 is 44445846.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2702257 + ... + 2702280.

Almost surely, 2^64854444 is an apocalyptic number.

It is an amenable number.

64854444 is an abundant number, since it is smaller than the sum of its proper divisors (86472620).

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

64854444 is a wasteful number, since it uses less digits than its factorization.

64854444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5404544 (or 5404542 counting only the distinct ones).

The product of its digits is 245760, while the sum is 39.

The square root of 64854444 is about 8053.2256891261. The cubic root of 64854444 is about 401.7722280894.

The spelling of 64854444 in words is "sixty-four million, eight hundred fifty-four thousand, four hundred forty-four".