84032431 has 4 divisors (see below), whose sum is σ = 96037072. Its totient is φ = 72027792.

The previous prime is 84032387. The next prime is 84032453. The reversal of 84032431 is 13423048.

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 84032431 - 2¹¹ = 84030383 is a prime.

It is a super-2 number, since 2×84032431² = 14122898919539522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84032396 and 84032405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84035431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6002310 + ... + 6002323.

It is an arithmetic number, because the mean of its divisors is an integer number (24009268).

Almost surely, 2^84032431 is an apocalyptic number.

84032431 is a deficient number, since it is larger than the sum of its proper divisors (12004641).

84032431 is a wasteful number, since it uses less digits than its factorization.

84032431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12004640.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 84032431 is about 9166.9204752741. The cubic root of 84032431 is about 438.0082687151.

Adding to 84032431 its reverse (13423048), we get a palindrome (97455479).

The spelling of 84032431 in words is "eighty-four million, thirty-two thousand, four hundred thirty-one".