30768769 has 2 divisors, whose sum is σ = 30768770. Its totient is φ = 30768768.

The previous prime is 30768761. The next prime is 30768781. The reversal of 30768769 is 96786703.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18378369 + 12390400 = 4287^2 + 3520^2 .

It is a cyclic number.

It is not a de Polignac number, because 30768769 - 2³ = 30768761 is a prime.

It is a super-2 number, since 2×30768769² = 1893434291550722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30768761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15384384 + 15384385.

It is an arithmetic number, because the mean of its divisors is an integer number (15384385).

Almost surely, 2^30768769 is an apocalyptic number.

It is an amenable number.

30768769 is a deficient number, since it is larger than the sum of its proper divisors (1).

30768769 is an equidigital number, since it uses as much as digits as its factorization.

30768769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 30768769 is about 5546.9603387802. The cubic root of 30768769 is about 313.3550564638.

The spelling of 30768769 in words is "thirty million, seven hundred sixty-eight thousand, seven hundred sixty-nine".