83903617 has 4 divisors (see below), whose sum is σ = 95889856. Its totient is φ = 71917380.

The previous prime is 83903591. The next prime is 83903623. The reversal of 83903617 is 71630938.

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 83903617 - 2⁷ = 83903489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83903647) 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, 5993109 + ... + 5993122.

It is an arithmetic number, because the mean of its divisors is an integer number (23972464).

Almost surely, 2^83903617 is an apocalyptic number.

It is an amenable number.

83903617 is a deficient number, since it is larger than the sum of its proper divisors (11986239).

83903617 is a wasteful number, since it uses less digits than its factorization.

83903617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11986238.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 83903617 is about 9159.8917570024. The cubic root of 83903617 is about 437.7843454404.

The spelling of 83903617 in words is "eighty-three million, nine hundred three thousand, six hundred seventeen".