768613 has 2 divisors, whose sum is σ = 768614. Its totient is φ = 768612.

The previous prime is 768589. The next prime is 768623. The reversal of 768613 is 316867.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 667489 + 101124 = 817^2 + 318^2 .

It is a cyclic number.

It is not a de Polignac number, because 768613 - 2⁹ = 768101 is a prime.

It is an Ulam number.

It is a nialpdrome in base 16.

It is a zygodrome in base 3.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (768623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384306 + 384307.

It is an arithmetic number, because the mean of its divisors is an integer number (384307).

2⁷⁶⁸⁶¹³ is an apocalyptic number.

It is an amenable number.

768613 is a deficient number, since it is larger than the sum of its proper divisors (1).

768613 is an equidigital number, since it uses as much as digits as its factorization.

768613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 31.

The square root of 768613 is about 876.7057659215. The cubic root of 768613 is about 91.6014978493.

The spelling of 768613 in words is "seven hundred sixty-eight thousand, six hundred thirteen".