64061982 has 32 divisors (see below), whose sum is σ = 142624800. Its totient is φ = 21314304.

The previous prime is 64061981. The next prime is 64061989. The reversal of 64061982 is 28916046.

64061982 is a `hidden beast` number, since 640 + 6 + 1 + 9 + 8 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64061981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49528 + ... + 50804.

It is an arithmetic number, because the mean of its divisors is an integer number (4457025).

Almost surely, 2^64061982 is an apocalyptic number.

64061982 is an abundant number, since it is smaller than the sum of its proper divisors (78562818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64061982 is a wasteful number, since it uses less digits than its factorization.

64061982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2217 (or 2211 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 64061982 is about 8003.8729375222. The cubic root of 64061982 is about 400.1290875032.

The spelling of 64061982 in words is "sixty-four million, sixty-one thousand, nine hundred eighty-two".