64860285 has 16 divisors (see below), whose sum is σ = 118601856. Its totient is φ = 29650368.

The previous prime is 64860251. The next prime is 64860317. The reversal of 64860285 is 58206846.

It is not a de Polignac number, because 64860285 - 2¹² = 64856189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 308754 + ... + 308963.

It is an arithmetic number, because the mean of its divisors is an integer number (7412616).

Almost surely, 2^64860285 is an apocalyptic number.

It is an amenable number.

64860285 is a deficient number, since it is larger than the sum of its proper divisors (53741571).

64860285 is a wasteful number, since it uses less digits than its factorization.

64860285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617732.

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 64860285 is about 8053.5883306760. The cubic root of 64860285 is about 401.7842893607.

The spelling of 64860285 in words is "sixty-four million, eight hundred sixty thousand, two hundred eighty-five".