64383857 has 8 divisors (see below), whose sum is σ = 68154240. Its totient is φ = 60716880.

The previous prime is 64383829. The next prime is 64383871. The reversal of 64383857 is 75838346.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64383857 - 2¹⁴ = 64367473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64383887) 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, 24569 + ... + 27062.

It is an arithmetic number, because the mean of its divisors is an integer number (8519280).

Almost surely, 2^64383857 is an apocalyptic number.

It is an amenable number.

64383857 is a deficient number, since it is larger than the sum of its proper divisors (3770383).

64383857 is a wasteful number, since it uses less digits than its factorization.

64383857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51703.

The product of its digits is 483840, while the sum is 44.

The square root of 64383857 is about 8023.9551967842. The cubic root of 64383857 is about 400.7981085809.

The spelling of 64383857 in words is "sixty-four million, three hundred eighty-three thousand, eight hundred fifty-seven".