84265799 has 2 divisors, whose sum is σ = 84265800. Its totient is φ = 84265798.

The previous prime is 84265789. The next prime is 84265801. The reversal of 84265799 is 99756248.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84265799 - 2¹² = 84261703 is a prime.

It is a super-2 number, since 2×84265799² = 14201449762216802, which contains 22 as substring.

Together with 84265801, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84265759) 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, 42132899 + 42132900.

It is an arithmetic number, because the mean of its divisors is an integer number (42132900).

Almost surely, 2^84265799 is an apocalyptic number.

84265799 is a deficient number, since it is larger than the sum of its proper divisors (1).

84265799 is an equidigital number, since it uses as much as digits as its factorization.

84265799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 50.

The square root of 84265799 is about 9179.6404613688. The cubic root of 84265799 is about 438.4133608728.

The spelling of 84265799 in words is "eighty-four million, two hundred sixty-five thousand, seven hundred ninety-nine".