84491339 has 2 divisors, whose sum is σ = 84491340. Its totient is φ = 84491338.

The previous prime is 84491327. The next prime is 84491353. The reversal of 84491339 is 93319448.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84491339 - 2²⁰ = 83442763 is a prime.

It is a Chen prime.

It is equal to p_4915976 and since 84491339 and 4915976 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 84491296 and 84491305.

It is not a weakly prime, because it can be changed into another prime (84491359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42245669 + 42245670.

It is an arithmetic number, because the mean of its divisors is an integer number (42245670).

Almost surely, 2^84491339 is an apocalyptic number.

84491339 is a deficient number, since it is larger than the sum of its proper divisors (1).

84491339 is an equidigital number, since it uses as much as digits as its factorization.

84491339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 41.

The square root of 84491339 is about 9191.9170470582. The cubic root of 84491339 is about 438.8041546994.

The spelling of 84491339 in words is "eighty-four million, four hundred ninety-one thousand, three hundred thirty-nine".