84259291 has 2 divisors, whose sum is σ = 84259292. Its totient is φ = 84259290.

The previous prime is 84259283. The next prime is 84259309. The reversal of 84259291 is 19295248.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84259291 - 2³ = 84259283 is a prime.

It is not a weakly prime, because it can be changed into another prime (84259261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42129645 + 42129646.

It is an arithmetic number, because the mean of its divisors is an integer number (42129646).

Almost surely, 2^84259291 is an apocalyptic number.

84259291 is a deficient number, since it is larger than the sum of its proper divisors (1).

84259291 is an equidigital number, since it uses as much as digits as its factorization.

84259291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 40.

The square root of 84259291 is about 9179.2859744100. The cubic root of 84259291 is about 438.4020740968.

The spelling of 84259291 in words is "eighty-four million, two hundred fifty-nine thousand, two hundred ninety-one".