84097799 has 2 divisors, whose sum is σ = 84097800. Its totient is φ = 84097798.

The previous prime is 84097771. The next prime is 84097817. The reversal of 84097799 is 99779048.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84097799 - 2²⁰ = 83049223 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84097799.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84087799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42048899 + 42048900.

It is an arithmetic number, because the mean of its divisors is an integer number (42048900).

Almost surely, 2^84097799 is an apocalyptic number.

84097799 is a deficient number, since it is larger than the sum of its proper divisors (1).

84097799 is an equidigital number, since it uses as much as digits as its factorization.

84097799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1143072, while the sum is 53.

The square root of 84097799 is about 9170.4852107181. The cubic root of 84097799 is about 438.1218133838.

The spelling of 84097799 in words is "eighty-four million, ninety-seven thousand, seven hundred ninety-nine".