83816642 has 16 divisors (see below), whose sum is σ = 154738752. Its totient is φ = 33158160.

The previous prime is 83816609. The next prime is 83816671. The reversal of 83816642 is 24661838.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 83816596 and 83816605.

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, 230084 + ... + 230447.

It is an arithmetic number, because the mean of its divisors is an integer number (9671172).

Almost surely, 2^83816642 is an apocalyptic number.

83816642 is a deficient number, since it is larger than the sum of its proper divisors (70922110).

83816642 is a wasteful number, since it uses less digits than its factorization.

83816642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460553.

The product of its digits is 55296, while the sum is 38.

The square root of 83816642 is about 9155.1429262464. The cubic root of 83816642 is about 437.6330231689.

The spelling of 83816642 in words is "eighty-three million, eight hundred sixteen thousand, six hundred forty-two".