83981330 has 16 divisors (see below), whose sum is σ = 159122880. Its totient is φ = 31824432.

The previous prime is 83981329. The next prime is 83981353. The reversal of 83981330 is 3318938.

It is a Curzon 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, 220814 + ... + 221193.

It is an arithmetic number, because the mean of its divisors is an integer number (9945180).

Almost surely, 2^83981330 is an apocalyptic number.

83981330 is a deficient number, since it is larger than the sum of its proper divisors (75141550).

83981330 is a wasteful number, since it uses less digits than its factorization.

83981330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442033.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 83981330 is about 9164.1328013075. The cubic root of 83981330 is about 437.9194649091.

The spelling of 83981330 in words is "eighty-three million, nine hundred eighty-one thousand, three hundred thirty".