64268885 has 8 divisors (see below), whose sum is σ = 77277240. Its totient is φ = 51312064.

The previous prime is 64268873. The next prime is 64268899. The reversal of 64268885 is 58886246.

It can be written as a sum of positive squares in 4 ways, for example, as 31561924 + 32706961 = 5618^2 + 5719^2 .

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 64268885 - 2⁶ = 64268821 is a prime.

It is a Curzon number.

It is a congruent number.

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, 10082 + ... + 15171.

It is an arithmetic number, because the mean of its divisors is an integer number (9659655).

Almost surely, 2^64268885 is an apocalyptic number.

It is an amenable number.

64268885 is a deficient number, since it is larger than the sum of its proper divisors (13008355).

64268885 is a wasteful number, since it uses less digits than its factorization.

64268885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25767.

The product of its digits is 737280, while the sum is 47.

The square root of 64268885 is about 8016.7876983241. The cubic root of 64268885 is about 400.5593944134.

The spelling of 64268885 in words is "sixty-four million, two hundred sixty-eight thousand, eight hundred eighty-five".