84788831 has 2 divisors, whose sum is σ = 84788832. Its totient is φ = 84788830.

The previous prime is 84788801. The next prime is 84788903. The reversal of 84788831 is 13888748.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84788831 - 2²⁶ = 17679967 is a prime.

It is a super-2 number, since 2×84788831² = 14378291724693122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84788801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42394415 + 42394416.

It is an arithmetic number, because the mean of its divisors is an integer number (42394416).

Almost surely, 2^84788831 is an apocalyptic number.

84788831 is a deficient number, since it is larger than the sum of its proper divisors (1).

84788831 is an equidigital number, since it uses as much as digits as its factorization.

84788831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 344064, while the sum is 47.

The square root of 84788831 is about 9208.0850886599. The cubic root of 84788831 is about 439.3185577765.

The spelling of 84788831 in words is "eighty-four million, seven hundred eighty-eight thousand, eight hundred thirty-one".