83768919 has 16 divisors (see below), whose sum is σ = 120755712. Its totient is φ = 51347808.

The previous prime is 83768917. The next prime is 83768947. The reversal of 83768919 is 91986738.

It is not a de Polignac number, because 83768919 - 2¹ = 83768917 is a prime.

It is a super-2 number, since 2×83768919² = 14034463580857122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83768917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6174 + ... + 14340.

It is an arithmetic number, because the mean of its divisors is an integer number (7547232).

Almost surely, 2^83768919 is an apocalyptic number.

83768919 is a deficient number, since it is larger than the sum of its proper divisors (36986793).

83768919 is a wasteful number, since it uses less digits than its factorization.

83768919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8446.

The product of its digits is 653184, while the sum is 51.

The square root of 83768919 is about 9152.5362058830. The cubic root of 83768919 is about 437.5499484741.

The spelling of 83768919 in words is "eighty-three million, seven hundred sixty-eight thousand, nine hundred nineteen".