84195631 has 16 divisors (see below), whose sum is σ = 96056800. Its totient is φ = 73592064.

The previous prime is 84195607. The next prime is 84195647. The reversal of 84195631 is 13659148.

It is not a de Polignac number, because 84195631 - 2¹⁵ = 84162863 is a prime.

It is a super-2 number, since 2×84195631² = 14177808558976322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84195931) 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 15 ways as a sum of consecutive naturals, for example, 40735 + ... + 42751.

It is an arithmetic number, because the mean of its divisors is an integer number (6003550).

Almost surely, 2^84195631 is an apocalyptic number.

84195631 is a deficient number, since it is larger than the sum of its proper divisors (11861169).

84195631 is a wasteful number, since it uses less digits than its factorization.

84195631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2075 (or 2049 counting only the distinct ones).

The product of its digits is 25920, while the sum is 37.

The square root of 84195631 is about 9175.8177292272. The cubic root of 84195631 is about 438.2916383722.

The spelling of 84195631 in words is "eighty-four million, one hundred ninety-five thousand, six hundred thirty-one".