82913819 has 2 divisors, whose sum is σ = 82913820. Its totient is φ = 82913818.

The previous prime is 82913807. The next prime is 82913837. The reversal of 82913819 is 91831928.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82913819 is a prime.

It is a super-2 number, since 2×82913819² = 13749402762329522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (82913869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41456909 + 41456910.

It is an arithmetic number, because the mean of its divisors is an integer number (41456910).

Almost surely, 2^82913819 is an apocalyptic number.

82913819 is a deficient number, since it is larger than the sum of its proper divisors (1).

82913819 is an equidigital number, since it uses as much as digits as its factorization.

82913819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 41.

The square root of 82913819 is about 9105.7025538945. The cubic root of 82913819 is about 436.0560399168.

The spelling of 82913819 in words is "eighty-two million, nine hundred thirteen thousand, eight hundred nineteen".