83317887 has 24 divisors (see below), whose sum is σ = 124962240. Its totient is φ = 53455680.

The previous prime is 83317873. The next prime is 83317909. The reversal of 83317887 is 78871338.

It is not a de Polignac number, because 83317887 - 2²³ = 74929279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83317837) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24189 + ... + 27417.

It is an arithmetic number, because the mean of its divisors is an integer number (5206760).

Almost surely, 2^83317887 is an apocalyptic number.

83317887 is a deficient number, since it is larger than the sum of its proper divisors (41644353).

83317887 is a wasteful number, since it uses less digits than its factorization.

83317887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3343 (or 3340 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 83317887 is about 9127.8632220252. The cubic root of 83317887 is about 436.7632434705.

The spelling of 83317887 in words is "eighty-three million, three hundred seventeen thousand, eight hundred eighty-seven".