84116431 has 4 divisors (see below), whose sum is σ = 96133072. Its totient is φ = 72099792.

The previous prime is 84116419. The next prime is 84116441. The reversal of 84116431 is 13461148.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 84116431 - 2⁵ = 84116399 is a prime.

It is a super-2 number, since 2×84116431² = 14151147928355522, 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 84116431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84116441) 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 3 ways as a sum of consecutive naturals, for example, 6008310 + ... + 6008323.

It is an arithmetic number, because the mean of its divisors is an integer number (24033268).

Almost surely, 2^84116431 is an apocalyptic number.

84116431 is a deficient number, since it is larger than the sum of its proper divisors (12016641).

84116431 is a wasteful number, since it uses less digits than its factorization.

84116431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12016640.

The product of its digits is 2304, while the sum is 28.

The square root of 84116431 is about 9171.5010221882. The cubic root of 84116431 is about 438.1541665209.

Adding to 84116431 its reverse (13461148), we get a palindrome (97577579).

The spelling of 84116431 in words is "eighty-four million, one hundred sixteen thousand, four hundred thirty-one".