64882775 has 6 divisors (see below), whose sum is σ = 80454672. Its totient is φ = 51906200.

The previous prime is 64882757. The next prime is 64882781. The reversal of 64882775 is 57728846.

It is not a de Polignac number, because 64882775 - 2²⁴ = 48105559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1297631 + ... + 1297680.

It is an arithmetic number, because the mean of its divisors is an integer number (13409112).

Almost surely, 2^64882775 is an apocalyptic number.

64882775 is a deficient number, since it is larger than the sum of its proper divisors (15571897).

64882775 is a wasteful number, since it uses less digits than its factorization.

64882775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2595321 (or 2595316 counting only the distinct ones).

The product of its digits is 752640, while the sum is 47.

The square root of 64882775 is about 8054.9844816734. The cubic root of 64882775 is about 401.8307229344.

The spelling of 64882775 in words is "sixty-four million, eight hundred eighty-two thousand, seven hundred seventy-five".