84080631 has 16 divisors (see below), whose sum is σ = 116108640. Its totient is φ = 54088320.

The previous prime is 84080629. The next prime is 84080639. The reversal of 84080631 is 13608048.

It is a happy number.

It is not a de Polignac number, because 84080631 - 2¹ = 84080629 is a prime.

It is a super-2 number, since 2×84080631² = 14139105018716322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84080639) 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 in 15 ways as a sum of consecutive naturals, for example, 5365 + ... + 14033.

It is an arithmetic number, because the mean of its divisors is an integer number (7256790).

Almost surely, 2^84080631 is an apocalyptic number.

84080631 is a deficient number, since it is larger than the sum of its proper divisors (32028009).

84080631 is a wasteful number, since it uses less digits than its factorization.

84080631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8786.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 84080631 is about 9169.5491165051. The cubic root of 84080631 is about 438.0919981478.

Adding to 84080631 its reverse (13608048), we get a palindrome (97688679).

The spelling of 84080631 in words is "eighty-four million, eighty thousand, six hundred thirty-one".