82381964 has 48 divisors (see below), whose sum is σ = 169155840. Its totient is φ = 34378560.

The previous prime is 82381933. The next prime is 82382059. The reversal of 82381964 is 46918328.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237239 + ... + 237585.

It is an arithmetic number, because the mean of its divisors is an integer number (3524080).

Almost surely, 2^82381964 is an apocalyptic number.

It is an amenable number.

82381964 is an abundant number, since it is smaller than the sum of its proper divisors (86773876).

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

82381964 is a wasteful number, since it uses less digits than its factorization.

82381964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558 (or 556 counting only the distinct ones).

The product of its digits is 82944, while the sum is 41.

The square root of 82381964 is about 9076.4510685620. The cubic root of 82381964 is about 435.1216711660.

The spelling of 82381964 in words is "eighty-two million, three hundred eighty-one thousand, nine hundred sixty-four".