64990682 has 8 divisors (see below), whose sum is σ = 100847700. Its totient is φ = 31374784.

The previous prime is 64990661. The next prime is 64990691. The reversal of 64990682 is 28609946.

It can be written as a sum of positive squares in 2 ways, for example, as 56235001 + 8755681 = 7499^2 + 2959^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 560207 + ... + 560322.

Almost surely, 2^64990682 is an apocalyptic number.

64990682 is a deficient number, since it is larger than the sum of its proper divisors (35857018).

64990682 is a wasteful number, since it uses less digits than its factorization.

64990682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120560.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 64990682 is about 8061.6798497584. The cubic root of 64990682 is about 402.0533620574.

The spelling of 64990682 in words is "sixty-four million, nine hundred ninety thousand, six hundred eighty-two".