84267899 has 2 divisors, whose sum is σ = 84267900. Its totient is φ = 84267898.

The previous prime is 84267847. The next prime is 84267913. The reversal of 84267899 is 99876248.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84267899 - 2⁸ = 84267643 is a prime.

It is a Sophie Germain 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 84267899.

It is not a weakly prime, because it can be changed into another prime (84267809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42133949 + 42133950.

It is an arithmetic number, because the mean of its divisors is an integer number (42133950).

Almost surely, 2^84267899 is an apocalyptic number.

84267899 is a deficient number, since it is larger than the sum of its proper divisors (1).

84267899 is an equidigital number, since it uses as much as digits as its factorization.

84267899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1741824, while the sum is 53.

The square root of 84267899 is about 9179.7548442211. The cubic root of 84267899 is about 438.4170027632.

The spelling of 84267899 in words is "eighty-four million, two hundred sixty-seven thousand, eight hundred ninety-nine".