64870882 has 4 divisors (see below), whose sum is σ = 97306326. Its totient is φ = 32435440.

The previous prime is 64870859. The next prime is 64870909. The reversal of 64870882 is 28807846.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 62078641 + 2792241 = 7879^2 + 1671^2 .

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 as a sum of consecutive naturals, namely, 16217719 + ... + 16217722.

Almost surely, 2^64870882 is an apocalyptic number.

64870882 is a deficient number, since it is larger than the sum of its proper divisors (32435444).

64870882 is a wasteful number, since it uses less digits than its factorization.

64870882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32435443.

The product of its (nonzero) digits is 172032, while the sum is 43.

The square root of 64870882 is about 8054.2462092985. The cubic root of 64870882 is about 401.8061696030.

The spelling of 64870882 in words is "sixty-four million, eight hundred seventy thousand, eight hundred eighty-two".