64539982 has 16 divisors (see below), whose sum is σ = 106026480. Its totient is φ = 29282112.

The previous prime is 64539971. The next prime is 64539997. The reversal of 64539982 is 28993546.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19503 + ... + 22570.

It is an arithmetic number, because the mean of its divisors is an integer number (6626655).

Almost surely, 2^64539982 is an apocalyptic number.

64539982 is a deficient number, since it is larger than the sum of its proper divisors (41486498).

64539982 is a wasteful number, since it uses less digits than its factorization.

64539982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42147.

The product of its digits is 466560, while the sum is 46.

The square root of 64539982 is about 8033.6779870742. The cubic root of 64539982 is about 401.1218133956.

The spelling of 64539982 in words is "sixty-four million, five hundred thirty-nine thousand, nine hundred eighty-two".