83985177 has 4 divisors (see below), whose sum is σ = 111980240. Its totient is φ = 55990116.

The previous prime is 83985173. The next prime is 83985199. The reversal of 83985177 is 77158938.

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 not a de Polignac number, because 83985177 - 2² = 83985173 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83985173) 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, 13997527 + ... + 13997532.

It is an arithmetic number, because the mean of its divisors is an integer number (27995060).

Almost surely, 2^83985177 is an apocalyptic number.

It is an amenable number.

83985177 is a deficient number, since it is larger than the sum of its proper divisors (27995063).

83985177 is a wasteful number, since it uses less digits than its factorization.

83985177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27995062.

The product of its digits is 423360, while the sum is 48.

The square root of 83985177 is about 9164.3426932868. The cubic root of 83985177 is about 437.9261515161.

The spelling of 83985177 in words is "eighty-three million, nine hundred eighty-five thousand, one hundred seventy-seven".