83380517 has 4 divisors (see below), whose sum is σ = 90960576. Its totient is φ = 75800460.

The previous prime is 83380513. The next prime is 83380541. The reversal of 83380517 is 71508338.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 83380517 - 2² = 83380513 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 (83380513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3790013 + ... + 3790034.

It is an arithmetic number, because the mean of its divisors is an integer number (22740144).

Almost surely, 2^83380517 is an apocalyptic number.

It is an amenable number.

83380517 is a deficient number, since it is larger than the sum of its proper divisors (7580059).

83380517 is a wasteful number, since it uses less digits than its factorization.

83380517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7580058.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 83380517 is about 9131.2932818961. The cubic root of 83380517 is about 436.8726542731.

The spelling of 83380517 in words is "eighty-three million, three hundred eighty thousand, five hundred seventeen".