68775827 has 2 divisors, whose sum is σ = 68775828. Its totient is φ = 68775826.

The previous prime is 68775809. The next prime is 68775841. The reversal of 68775827 is 72857786.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68775827 - 2²² = 64581523 is a prime.

It is a super-2 number, since 2×68775827² = 9460228759067858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (68775227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34387913 + 34387914.

It is an arithmetic number, because the mean of its divisors is an integer number (34387914).

Almost surely, 2^68775827 is an apocalyptic number.

68775827 is a deficient number, since it is larger than the sum of its proper divisors (1).

68775827 is an equidigital number, since it uses as much as digits as its factorization.

68775827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1317120, while the sum is 50.

The square root of 68775827 is about 8293.1192563474. The cubic root of 68775827 is about 409.7119273276.

The spelling of 68775827 in words is "sixty-eight million, seven hundred seventy-five thousand, eight hundred twenty-seven".