83899828 has 24 divisors (see below), whose sum is σ = 156510144. Its totient is φ = 39216000.

The previous prime is 83899799. The next prime is 83899853. The reversal of 83899828 is 82899838.

It is a super-2 number, since 2×83899828² = 14078362276859168, 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 7 ways as a sum of consecutive naturals, for example, 6183 + ... + 14353.

It is an arithmetic number, because the mean of its divisors is an integer number (6521256).

Almost surely, 2^83899828 is an apocalyptic number.

It is an amenable number.

83899828 is a deficient number, since it is larger than the sum of its proper divisors (72610316).

83899828 is a wasteful number, since it uses less digits than its factorization.

83899828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8343 (or 8341 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 55.

The square root of 83899828 is about 9159.6849290792. The cubic root of 83899828 is about 437.7777553794. Note that the first 4 decimals are identical.

The spelling of 83899828 in words is "eighty-three million, eight hundred ninety-nine thousand, eight hundred twenty-eight".