83508881 has 4 divisors (see below), whose sum is σ = 85450992. Its totient is φ = 81566772.

The previous prime is 83508877. The next prime is 83508907. The reversal of 83508881 is 18880538.

It is a happy number.

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 83508881 - 2² = 83508877 is a prime.

It is a super-2 number, since 2×83508881² = 13947466411744322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83508181) 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, 970991 + ... + 971076.

It is an arithmetic number, because the mean of its divisors is an integer number (21362748).

Almost surely, 2^83508881 is an apocalyptic number.

It is an amenable number.

83508881 is a deficient number, since it is larger than the sum of its proper divisors (1942111).

83508881 is a wasteful number, since it uses less digits than its factorization.

83508881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1942110.

The product of its (nonzero) digits is 61440, while the sum is 41.

The square root of 83508881 is about 9138.3193750273. The cubic root of 83508881 is about 437.0967272754.

The spelling of 83508881 in words is "eighty-three million, five hundred eight thousand, eight hundred eighty-one".