83930717 has 8 divisors (see below), whose sum is σ = 95704056. Its totient is φ = 72916992.

The previous prime is 83930713. The next prime is 83930779. The reversal of 83930717 is 71703938.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6120676 + 77810041 = 2474^2 + 8821^2 .

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 83930717 - 2² = 83930713 is a prime.

It is a super-2 number, since 2×83930717² = 14088730512268178, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83930713) 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, 189668 + ... + 190109.

It is an arithmetic number, because the mean of its divisors is an integer number (11963007).

Almost surely, 2^83930717 is an apocalyptic number.

It is an amenable number.

83930717 is a deficient number, since it is larger than the sum of its proper divisors (11773339).

83930717 is a wasteful number, since it uses less digits than its factorization.

83930717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379807.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 83930717 is about 9161.3709126964. The cubic root of 83930717 is about 437.8314736378.

The spelling of 83930717 in words is "eighty-three million, nine hundred thirty thousand, seven hundred seventeen".