84332431 has 16 divisors (see below), whose sum is σ = 93045760. Its totient is φ = 76127040.

The previous prime is 84332411. The next prime is 84332441. The reversal of 84332431 is 13423348.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84332431 is a prime.

It is a super-2 number, since 2×84332431² = 14223917836739522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84332431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84332401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38395 + ... + 40531.

It is an arithmetic number, because the mean of its divisors is an integer number (5815360).

Almost surely, 2^84332431 is an apocalyptic number.

84332431 is a deficient number, since it is larger than the sum of its proper divisors (8713329).

84332431 is a wasteful number, since it uses less digits than its factorization.

84332431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2254.

The product of its digits is 6912, while the sum is 28.

The square root of 84332431 is about 9183.2690802350. The cubic root of 84332431 is about 438.5288868356.

Adding to 84332431 its reverse (13423348), we get a palindrome (97755779).

The spelling of 84332431 in words is "eighty-four million, three hundred thirty-two thousand, four hundred thirty-one".