84330427 has 2 divisors, whose sum is σ = 84330428. Its totient is φ = 84330426.

The previous prime is 84330401. The next prime is 84330457. The reversal of 84330427 is 72403348.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84330427 - 2⁷ = 84330299 is a prime.

It is a super-2 number, since 2×84330427² = 14223241836004658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (84330457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42165213 + 42165214.

It is an arithmetic number, because the mean of its divisors is an integer number (42165214).

Almost surely, 2^84330427 is an apocalyptic number.

84330427 is a deficient number, since it is larger than the sum of its proper divisors (1).

84330427 is an equidigital number, since it uses as much as digits as its factorization.

84330427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 84330427 is about 9183.1599681156. The cubic root of 84330427 is about 438.5254132062.

The spelling of 84330427 in words is "eighty-four million, three hundred thirty thousand, four hundred twenty-seven".