83913619 has 2 divisors, whose sum is σ = 83913620. Its totient is φ = 83913618.

The previous prime is 83913611. The next prime is 83913623. The reversal of 83913619 is 91631938.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83913619 - 2³ = 83913611 is a prime.

It is a super-2 number, since 2×83913619² = 14082990907354322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (83913611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41956809 + 41956810.

It is an arithmetic number, because the mean of its divisors is an integer number (41956810).

Almost surely, 2^83913619 is an apocalyptic number.

83913619 is a deficient number, since it is larger than the sum of its proper divisors (1).

83913619 is an equidigital number, since it uses as much as digits as its factorization.

83913619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 40.

The square root of 83913619 is about 9160.4377078827. The cubic root of 83913619 is about 437.8017405786.

The spelling of 83913619 in words is "eighty-three million, nine hundred thirteen thousand, six hundred nineteen".