83990195 has 16 divisors (see below), whose sum is σ = 102709920. Its totient is φ = 65919744.

The previous prime is 83990189. The next prime is 83990219. The reversal of 83990195 is 59109938.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83990195 is a prime.

It is a super-2 number, since 2×83990195² = 14108705712276050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136709 + ... + 137321.

It is an arithmetic number, because the mean of its divisors is an integer number (6419370).

Almost surely, 2^83990195 is an apocalyptic number.

83990195 is a deficient number, since it is larger than the sum of its proper divisors (18719725).

83990195 is a wasteful number, since it uses less digits than its factorization.

83990195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094.

The product of its (nonzero) digits is 87480, while the sum is 44.

The square root of 83990195 is about 9164.6164676979. The cubic root of 83990195 is about 437.9348731729.

The spelling of 83990195 in words is "eighty-three million, nine hundred ninety thousand, one hundred ninety-five".