84327427 has 2 divisors, whose sum is σ = 84327428. Its totient is φ = 84327426.

The previous prime is 84327421. The next prime is 84327431. The reversal of 84327427 is 72472348.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84327427 is a prime.

It is a super-2 number, since 2×84327427² = 14222229888880658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (84327421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42163713 + 42163714.

It is an arithmetic number, because the mean of its divisors is an integer number (42163714).

Almost surely, 2^84327427 is an apocalyptic number.

84327427 is a deficient number, since it is larger than the sum of its proper divisors (1).

84327427 is an equidigital number, since it uses as much as digits as its factorization.

84327427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75264, while the sum is 37.

The square root of 84327427 is about 9182.9966241963. The cubic root of 84327427 is about 438.5202130592.

The spelling of 84327427 in words is "eighty-four million, three hundred twenty-seven thousand, four hundred twenty-seven".