83983919 has 2 divisors, whose sum is σ = 83983920. Its totient is φ = 83983918.

The previous prime is 83983909. The next prime is 83983931. The reversal of 83983919 is 91938938.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83983919 - 2⁸ = 83983663 is a prime.

It is a super-2 number, since 2×83983919² = 14106597301197122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83983909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41991959 + 41991960.

It is an arithmetic number, because the mean of its divisors is an integer number (41991960).

Almost surely, 2^83983919 is an apocalyptic number.

83983919 is a deficient number, since it is larger than the sum of its proper divisors (1).

83983919 is an equidigital number, since it uses as much as digits as its factorization.

83983919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 419904, while the sum is 50.

The square root of 83983919 is about 9164.2740574472. The cubic root of 83983919 is about 437.9239649642.

The spelling of 83983919 in words is "eighty-three million, nine hundred eighty-three thousand, nine hundred nineteen".