83982390 has 16 divisors (see below), whose sum is σ = 201557808. Its totient is φ = 22395296.

The previous prime is 83982359. The next prime is 83982401. The reversal of 83982390 is 9328938.

It is a super-2 number, since 2×83982390² = 14106083660224200, which contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1399677 + ... + 1399736.

It is an arithmetic number, because the mean of its divisors is an integer number (12597363).

Almost surely, 2^83982390 is an apocalyptic number.

83982390 is an abundant number, since it is smaller than the sum of its proper divisors (117575418).

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

83982390 is a wasteful number, since it uses less digits than its factorization.

83982390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2799423.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 83982390 is about 9164.1906352934. The cubic root of 83982390 is about 437.9213073530.

The spelling of 83982390 in words is "eighty-three million, nine hundred eighty-two thousand, three hundred ninety".