84334427 has 2 divisors, whose sum is σ = 84334428. Its totient is φ = 84334426.

The previous prime is 84334381. The next prime is 84334429. The reversal of 84334427 is 72443348.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84334427 is a prime.

It is a super-2 number, since 2×84334427² = 14224591154836658, which contains 22 as substring.

Together with 84334429, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (84334429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42167213 + 42167214.

It is an arithmetic number, because the mean of its divisors is an integer number (42167214).

Almost surely, 2^84334427 is an apocalyptic number.

84334427 is a deficient number, since it is larger than the sum of its proper divisors (1).

84334427 is an equidigital number, since it uses as much as digits as its factorization.

84334427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64512, while the sum is 35.

The square root of 84334427 is about 9183.3777554884. The cubic root of 84334427 is about 438.5323465436.

The spelling of 84334427 in words is "eighty-four million, three hundred thirty-four thousand, four hundred twenty-seven".