84229631 has 2 divisors, whose sum is σ = 84229632. Its totient is φ = 84229630.

The previous prime is 84229597. The next prime is 84229633. The reversal of 84229631 is 13692248.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84229631 - 2⁶ = 84229567 is a prime.

It is a super-2 number, since 2×84229631² = 14189261476792322, which contains 22 as substring.

Together with 84229633, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 84229591 and 84229600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84229633) 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, 42114815 + 42114816.

It is an arithmetic number, because the mean of its divisors is an integer number (42114816).

Almost surely, 2^84229631 is an apocalyptic number.

84229631 is a deficient number, since it is larger than the sum of its proper divisors (1).

84229631 is an equidigital number, since it uses as much as digits as its factorization.

84229631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 35.

The square root of 84229631 is about 9177.6702381378. The cubic root of 84229631 is about 438.3506276177.

The spelling of 84229631 in words is "eighty-four million, two hundred twenty-nine thousand, six hundred thirty-one".