385763431 has 2 divisors, whose sum is σ = 385763432. Its totient is φ = 385763430.

The previous prime is 385763419. The next prime is 385763489. The reversal of 385763431 is 134367583.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 385763431 - 2¹³ = 385755239 is a prime.

It is a super-2 number, since 2×385763431² = 297626849393783522, which contains 22 as substring.

It is equal to p_20616997 and since 385763431 and 20616997 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385769431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192881715 + 192881716.

It is an arithmetic number, because the mean of its divisors is an integer number (192881716).

Almost surely, 2^385763431 is an apocalyptic number.

385763431 is a deficient number, since it is larger than the sum of its proper divisors (1).

385763431 is an equidigital number, since it uses as much as digits as its factorization.

385763431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 40.

The square root of 385763431 is about 19640.8612591200. The cubic root of 385763431 is about 727.9591656593.

The spelling of 385763431 in words is "three hundred eighty-five million, seven hundred sixty-three thousand, four hundred thirty-one".