84463231 has 2 divisors, whose sum is σ = 84463232. Its totient is φ = 84463230.

The previous prime is 84463187. The next prime is 84463273. The reversal of 84463231 is 13236448.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84463231 is a prime.

It is a super-2 number, since 2×84463231² = 14268074781918722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 84463193 and 84463202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84460231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42231615 + 42231616.

It is an arithmetic number, because the mean of its divisors is an integer number (42231616).

Almost surely, 2^84463231 is an apocalyptic number.

84463231 is a deficient number, since it is larger than the sum of its proper divisors (1).

84463231 is an equidigital number, since it uses as much as digits as its factorization.

84463231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 31.

The square root of 84463231 is about 9190.3879678717. The cubic root of 84463231 is about 438.7554898489.

Adding to 84463231 its reverse (13236448), we get a palindrome (97699679).

The spelling of 84463231 in words is "eighty-four million, four hundred sixty-three thousand, two hundred thirty-one".