83999942 has 16 divisors (see below), whose sum is σ = 136609200. Its totient is φ = 38507232.

The previous prime is 83999917. The next prime is 83999947. The reversal of 83999942 is 24999938.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83999947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6968 + ... + 14715.

It is an arithmetic number, because the mean of its divisors is an integer number (8538075).

Almost surely, 2^83999942 is an apocalyptic number.

83999942 is a deficient number, since it is larger than the sum of its proper divisors (52609258).

83999942 is a wasteful number, since it uses less digits than its factorization.

83999942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21847.

The product of its digits is 1259712, while the sum is 53.

The square root of 83999942 is about 9165.1482257517. The cubic root of 83999942 is about 437.9518131903.

The spelling of 83999942 in words is "eighty-three million, nine hundred ninety-nine thousand, nine hundred forty-two".