83680663 has 8 divisors (see below), whose sum is σ = 91437696. Its totient is φ = 75948600.

The previous prime is 83680661. The next prime is 83680669. The reversal of 83680663 is 36608638.

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 83680663 - 2¹ = 83680661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83680661) 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, 1158 + ... + 12988.

It is an arithmetic number, because the mean of its divisors is an integer number (11429712).

Almost surely, 2^83680663 is an apocalyptic number.

83680663 is a deficient number, since it is larger than the sum of its proper divisors (7757033).

83680663 is a wasteful number, since it uses less digits than its factorization.

83680663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12485.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 83680663 is about 9147.7135394589. The cubic root of 83680663 is about 437.3962320429.

The spelling of 83680663 in words is "eighty-three million, six hundred eighty thousand, six hundred sixty-three".