84238331 has 2 divisors, whose sum is σ = 84238332. Its totient is φ = 84238330.

The previous prime is 84238321. The next prime is 84238367. The reversal of 84238331 is 13383248.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84238331 - 2¹⁸ = 83976187 is a prime.

It is a super-2 number, since 2×84238331² = 14192192819331122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (84238321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42119165 + 42119166.

It is an arithmetic number, because the mean of its divisors is an integer number (42119166).

Almost surely, 2^84238331 is an apocalyptic number.

84238331 is a deficient number, since it is larger than the sum of its proper divisors (1).

84238331 is an equidigital number, since it uses as much as digits as its factorization.

84238331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 32.

The square root of 84238331 is about 9178.1442023973. The cubic root of 84238331 is about 438.3657193739.

The spelling of 84238331 in words is "eighty-four million, two hundred thirty-eight thousand, three hundred thirty-one".