64866285 has 96 divisors (see below), whose sum is σ = 133868160. Its totient is φ = 29795040.

The previous prime is 64866283. The next prime is 64866287. The reversal of 64866285 is 58266846.

It is an interprime number because it is at equal distance from previous prime (64866283) and next prime (64866287).

It is not a de Polignac number, because 64866285 - 2¹ = 64866283 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 64866285.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64866281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3414006 + ... + 3414024.

It is an arithmetic number, because the mean of its divisors is an integer number (1394460).

Almost surely, 2^64866285 is an apocalyptic number.

It is an amenable number.

64866285 is an abundant number, since it is smaller than the sum of its proper divisors (69001875).

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

64866285 is a wasteful number, since it uses less digits than its factorization.

64866285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85 (or 38 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 64866285 is about 8053.9608268230. The cubic root of 64866285 is about 401.7966782024.

The spelling of 64866285 in words is "sixty-four million, eight hundred sixty-six thousand, two hundred eighty-five".