64212885 has 48 divisors (see below), whose sum is σ = 125509440. Its totient is φ = 31125600.

The previous prime is 64212853. The next prime is 64212887. The reversal of 64212885 is 58821246.

64212885 is a `hidden beast` number, since 642 + 1 + 2 + 8 + 8 + 5 = 666.

It is not a de Polignac number, because 64212885 - 2⁵ = 64212853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64212887) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 14370 + ... + 18300.

It is an arithmetic number, because the mean of its divisors is an integer number (2614780).

Almost surely, 2^64212885 is an apocalyptic number.

It is an amenable number.

64212885 is a deficient number, since it is larger than the sum of its proper divisors (61296555).

64212885 is a wasteful number, since it uses less digits than its factorization.

64212885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3967 (or 3950 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 64212885 is about 8013.2942664050. The cubic root of 64212885 is about 400.4430195697.

The spelling of 64212885 in words is "sixty-four million, two hundred twelve thousand, eight hundred eighty-five".