768431 has 2 divisors, whose sum is σ = 768432. Its totient is φ = 768430.

The previous prime is 768419. The next prime is 768437. The reversal of 768431 is 134867.

It is a strong prime.

It is an emirp because it is prime and its reverse (134867) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-768431 is a prime.

It is a super-2 number, since 2×768431² = 1180972403522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 768394 and 768403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (768437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384215 + 384216.

It is an arithmetic number, because the mean of its divisors is an integer number (384216).

2⁷⁶⁸⁴³¹ is an apocalyptic number.

768431 is a deficient number, since it is larger than the sum of its proper divisors (1).

768431 is an equidigital number, since it uses as much as digits as its factorization.

768431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 29.

The square root of 768431 is about 876.6019621242. The cubic root of 768431 is about 91.5942671673.

The spelling of 768431 in words is "seven hundred sixty-eight thousand, four hundred thirty-one".