68775379 has 2 divisors, whose sum is σ = 68775380. Its totient is φ = 68775378.

The previous prime is 68775349. The next prime is 68775407. The reversal of 68775379 is 97357786.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68775379 - 2¹⁷ = 68644307 is a prime.

It is not a weakly prime, because it can be changed into another prime (68775349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34387689 + 34387690.

It is an arithmetic number, because the mean of its divisors is an integer number (34387690).

Almost surely, 2^68775379 is an apocalyptic number.

68775379 is a deficient number, since it is larger than the sum of its proper divisors (1).

68775379 is an equidigital number, since it uses as much as digits as its factorization.

68775379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2222640, while the sum is 52.

The square root of 68775379 is about 8293.0922459599. The cubic root of 68775379 is about 409.7110377159.

The spelling of 68775379 in words is "sixty-eight million, seven hundred seventy-five thousand, three hundred seventy-nine".