83281998 has 16 divisors (see below), whose sum is σ = 166669776. Its totient is φ = 27743040.

The previous prime is 83281993. The next prime is 83282041. The reversal of 83281998 is 89918238.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83281993) 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, 8938 + ... + 15698.

It is an arithmetic number, because the mean of its divisors is an integer number (10416861).

Almost surely, 2^83281998 is an apocalyptic number.

83281998 is an abundant number, since it is smaller than the sum of its proper divisors (83387778).

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

83281998 is a wasteful number, since it uses less digits than its factorization.

83281998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8819.

The product of its digits is 248832, while the sum is 48.

The square root of 83281998 is about 9125.8971065863. The cubic root of 83281998 is about 436.7005228559.

The spelling of 83281998 in words is "eighty-three million, two hundred eighty-one thousand, nine hundred ninety-eight".