83079918 has 80 divisors (see below), whose sum is σ = 199783584. Its totient is φ = 25712640.

The previous prime is 83079889. The next prime is 83079923. The reversal of 83079918 is 81997038.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 266983 + ... + 267293.

Almost surely, 2^83079918 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83079918, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99891792).

83079918 is an abundant number, since it is smaller than the sum of its proper divisors (116703666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83079918 is a wasteful number, since it uses less digits than its factorization.

83079918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439 (or 430 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 83079918 is about 9114.8185939162. The cubic root of 83079918 is about 436.3470254330.

It can be divided in two parts, 8307 and 9918, that added together give a square (18225 = 135²).

The spelling of 83079918 in words is "eighty-three million, seventy-nine thousand, nine hundred eighteen".