83980637 has 8 divisors (see below), whose sum is σ = 90513696. Its totient is φ = 77458032.

The previous prime is 83980621. The next prime is 83980649. The reversal of 83980637 is 73608938.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83980637 - 2⁴ = 83980621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83980837) 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, 24758 + ... + 27944.

It is an arithmetic number, because the mean of its divisors is an integer number (11314212).

Almost surely, 2^83980637 is an apocalyptic number.

It is an amenable number.

83980637 is a deficient number, since it is larger than the sum of its proper divisors (6533059).

83980637 is a wasteful number, since it uses less digits than its factorization.

83980637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5227.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 83980637 is about 9164.0949907779. The cubic root of 83980637 is about 437.9182603595.

The spelling of 83980637 in words is "eighty-three million, nine hundred eighty thousand, six hundred thirty-seven".