83868919 has 8 divisors (see below), whose sum is σ = 86679680. Its totient is φ = 81064800.

The previous prime is 83868887. The next prime is 83868931. The reversal of 83868919 is 91986838.

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

It is a cyclic number.

It is not a de Polignac number, because 83868919 - 2⁵ = 83868887 is a prime.

It is a super-2 number, since 2×83868919² = 14067991148457122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83868959) 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, 49417 + ... + 51085.

It is an arithmetic number, because the mean of its divisors is an integer number (10834960).

Almost surely, 2^83868919 is an apocalyptic number.

83868919 is a deficient number, since it is larger than the sum of its proper divisors (2810761).

83868919 is a wasteful number, since it uses less digits than its factorization.

83868919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3321.

The product of its digits is 746496, while the sum is 52.

The square root of 83868919 is about 9157.9975431314. The cubic root of 83868919 is about 437.7239891403.

The spelling of 83868919 in words is "eighty-three million, eight hundred sixty-eight thousand, nine hundred nineteen".