83672887 has 8 divisors (see below), whose sum is σ = 84870000. Its totient is φ = 82484544.

The previous prime is 83672851. The next prime is 83672891. The reversal of 83672887 is 78827638.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83672887 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 83672887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83672837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18364 + ... + 22462.

It is an arithmetic number, because the mean of its divisors is an integer number (10608750).

Almost surely, 2^83672887 is an apocalyptic number.

83672887 is a deficient number, since it is larger than the sum of its proper divisors (1197113).

83672887 is a wasteful number, since it uses less digits than its factorization.

83672887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4385.

The product of its digits is 903168, while the sum is 49.

The square root of 83672887 is about 9147.2885053441. The cubic root of 83672887 is about 437.3826833196.

The spelling of 83672887 in words is "eighty-three million, six hundred seventy-two thousand, eight hundred eighty-seven".