64541982 has 16 divisors (see below), whose sum is σ = 130902912. Its totient is φ = 21210840.

The previous prime is 64541959. The next prime is 64541987. The reversal of 64541982 is 28914546.

It is a self number, because there is not a number n which added to its sum of digits gives 64541982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64541987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75328 + ... + 76179.

It is an arithmetic number, because the mean of its divisors is an integer number (8181432).

Almost surely, 2^64541982 is an apocalyptic number.

64541982 is an abundant number, since it is smaller than the sum of its proper divisors (66360930).

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

64541982 is a wasteful number, since it uses less digits than its factorization.

64541982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151583.

The product of its digits is 69120, while the sum is 39.

The square root of 64541982 is about 8033.8024620973. The cubic root of 64541982 is about 401.1259567463.

The spelling of 64541982 in words is "sixty-four million, five hundred forty-one thousand, nine hundred eighty-two".