80043431 has 4 divisors (see below), whose sum is σ = 86200632. Its totient is φ = 73886232.

The previous prime is 80043391. The next prime is 80043433. The reversal of 80043431 is 13434008.

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 80043431 - 2²² = 75849127 is a prime.

It is a super-3 number, since 3×80043431³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80043397 and 80043406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80043433) 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, 3078581 + ... + 3078606.

It is an arithmetic number, because the mean of its divisors is an integer number (21550158).

Almost surely, 2^80043431 is an apocalyptic number.

80043431 is a deficient number, since it is larger than the sum of its proper divisors (6157201).

80043431 is a wasteful number, since it uses less digits than its factorization.

80043431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6157200.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 80043431 is about 8946.6994472822. The cubic root of 80043431 is about 430.9648982777.

Adding to 80043431 its reverse (13434008), we get a palindrome (93477439).

The spelling of 80043431 in words is "eighty million, forty-three thousand, four hundred thirty-one".