84682399 has 2 divisors, whose sum is σ = 84682400. Its totient is φ = 84682398.

The previous prime is 84682397. The next prime is 84682453. The reversal of 84682399 is 99328648.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84682399 - 2¹ = 84682397 is a prime.

It is a super-2 number, since 2×84682399² = 14342217400790402, which contains 22 as substring.

Together with 84682397, 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 (84682397) 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, 42341199 + 42341200.

It is an arithmetic number, because the mean of its divisors is an integer number (42341200).

Almost surely, 2^84682399 is an apocalyptic number.

84682399 is a deficient number, since it is larger than the sum of its proper divisors (1).

84682399 is an equidigital number, since it uses as much as digits as its factorization.

84682399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 746496, while the sum is 49.

The square root of 84682399 is about 9202.3040049761. The cubic root of 84682399 is about 439.1346611865.

The spelling of 84682399 in words is "eighty-four million, six hundred eighty-two thousand, three hundred ninety-nine".