83680026 has 32 divisors (see below), whose sum is σ = 175730688. Its totient is φ = 26513520.

The previous prime is 83680007. The next prime is 83680027. The reversal of 83680026 is 62008638.

It is not an unprimeable number, because it can be changed into a prime (83680027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21231 + ... + 24861.

It is an arithmetic number, because the mean of its divisors is an integer number (5491584).

Almost surely, 2^83680026 is an apocalyptic number.

83680026 is the 5786-th centered pentagonal number.

83680026 is an abundant number, since it is smaller than the sum of its proper divisors (92050662).

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

83680026 is a wasteful number, since it uses less digits than its factorization.

83680026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3826.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 83680026 is about 9147.6787219491. The cubic root of 83680026 is about 437.3951221803.

The spelling of 83680026 in words is "eighty-three million, six hundred eighty thousand, twenty-six".