83887311 has 8 divisors (see below), whose sum is σ = 111892144. Its totient is φ = 55903680.

The previous prime is 83887303. The next prime is 83887319. The reversal of 83887311 is 11378838.

It is an interprime number because it is at equal distance from previous prime (83887303) and next prime (83887319).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 83887311 - 2³ = 83887303 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83887311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83887319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12051 + ... + 17691.

It is an arithmetic number, because the mean of its divisors is an integer number (13986518).

Almost surely, 2^83887311 is an apocalyptic number.

83887311 is a deficient number, since it is larger than the sum of its proper divisors (28004833).

83887311 is a wasteful number, since it uses less digits than its factorization.

83887311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10601.

The product of its digits is 32256, while the sum is 39.

The square root of 83887311 is about 9159.0016377332. The cubic root of 83887311 is about 437.7559836355.

The spelling of 83887311 in words is "eighty-three million, eight hundred eighty-seven thousand, three hundred eleven".