538893431 has 2 divisors, whose sum is σ = 538893432. Its totient is φ = 538893430.

The previous prime is 538893403. The next prime is 538893451. The reversal of 538893431 is 134398835.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 538893431 - 2¹⁰ = 538892407 is a prime.

It is a super-2 number, since 2×538893431² = 580812259949903522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (538893451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269446715 + 269446716.

It is an arithmetic number, because the mean of its divisors is an integer number (269446716).

Almost surely, 2^538893431 is an apocalyptic number.

538893431 is a deficient number, since it is larger than the sum of its proper divisors (1).

538893431 is an equidigital number, since it uses as much as digits as its factorization.

538893431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 44.

The square root of 538893431 is about 23214.0782931393. The cubic root of 538893431 is about 813.7686656360.

The spelling of 538893431 in words is "five hundred thirty-eight million, eight hundred ninety-three thousand, four hundred thirty-one".