83899838 has 16 divisors (see below), whose sum is σ = 137514240. Its totient is φ = 38074200.

The previous prime is 83899799. The next prime is 83899853.

83899838 is nontrivially palindromic in base 10.

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, 12443 + ... + 17961.

It is an arithmetic number, because the mean of its divisors is an integer number (8594640).

Almost surely, 2^83899838 is an apocalyptic number.

83899838 is a deficient number, since it is larger than the sum of its proper divisors (53614402).

83899838 is a wasteful number, since it uses less digits than its factorization.

83899838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6223.

The product of its digits is 2985984, while the sum is 56.

The square root of 83899838 is about 9159.6854749495. The cubic root of 83899838 is about 437.7777727723. Note that the first 5 decimals are identical.

The spelling of 83899838 in words is "eighty-three million, eight hundred ninety-nine thousand, eight hundred thirty-eight".