543872431 has 2 divisors, whose sum is σ = 543872432. Its totient is φ = 543872430.

The previous prime is 543872423. The next prime is 543872437. The reversal of 543872431 is 134278345.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 543872431 - 2³ = 543872423 is a prime.

It is a super-2 number, since 2×543872431² = 591594442403699522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (543872437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271936215 + 271936216.

It is an arithmetic number, because the mean of its divisors is an integer number (271936216).

Almost surely, 2^543872431 is an apocalyptic number.

543872431 is a deficient number, since it is larger than the sum of its proper divisors (1).

543872431 is an equidigital number, since it uses as much as digits as its factorization.

543872431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 37.

The square root of 543872431 is about 23321.0726811611. The cubic root of 543872431 is about 816.2672050200.

The spelling of 543872431 in words is "five hundred forty-three million, eight hundred seventy-two thousand, four hundred thirty-one".