83899512 has 48 divisors (see below), whose sum is σ = 232071840. Its totient is φ = 27370368.

The previous prime is 83899481. The next prime is 83899531. The reversal of 83899512 is 21599838.

It is a happy number.

It is a super-2 number, since 2×83899512² = 14078256227676288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9013 + ... + 15780.

It is an arithmetic number, because the mean of its divisors is an integer number (4834830).

Almost surely, 2^83899512 is an apocalyptic number.

It is an amenable number.

83899512 is an abundant number, since it is smaller than the sum of its proper divisors (148172328).

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

83899512 is a wasteful number, since it uses less digits than its factorization.

83899512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24852 (or 24845 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 83899512 is about 9159.6676795613. The cubic root of 83899512 is about 437.7772057639. Note that the first 3 decimals are identical.

The spelling of 83899512 in words is "eighty-three million, eight hundred ninety-nine thousand, five hundred twelve".