84089631 has 8 divisors (see below), whose sum is σ = 113698944. Its totient is φ = 55270040.

The previous prime is 84089569. The next prime is 84089683. The reversal of 84089631 is 13698048.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84089631 - 2⁹ = 84089119 is a prime.

It is a super-2 number, since 2×84089631² = 14142132083432322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 84089631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84089431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197181 + ... + 197606.

It is an arithmetic number, because the mean of its divisors is an integer number (14212368).

Almost surely, 2^84089631 is an apocalyptic number.

84089631 is a deficient number, since it is larger than the sum of its proper divisors (29609313).

84089631 is a wasteful number, since it uses less digits than its factorization.

84089631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394861.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 84089631 is about 9170.0398581467. The cubic root of 84089631 is about 438.1076287286.

The spelling of 84089631 in words is "eighty-four million, eighty-nine thousand, six hundred thirty-one".