68674777 has 2 divisors, whose sum is σ = 68674778. Its totient is φ = 68674776.

The previous prime is 68674729. The next prime is 68674807. The reversal of 68674777 is 77747686.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67584841 + 1089936 = 8221^2 + 1044^2 .

It is a cyclic number.

It is not a de Polignac number, because 68674777 - 2¹¹ = 68672729 is a prime.

It is not a weakly prime, because it can be changed into another prime (68674717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34337388 + 34337389.

It is an arithmetic number, because the mean of its divisors is an integer number (34337389).

Almost surely, 2^68674777 is an apocalyptic number.

It is an amenable number.

68674777 is a deficient number, since it is larger than the sum of its proper divisors (1).

68674777 is an equidigital number, since it uses as much as digits as its factorization.

68674777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2765952, while the sum is 52.

The square root of 68674777 is about 8287.0246168332. The cubic root of 68674777 is about 409.5111703408.

The spelling of 68674777 in words is "sixty-eight million, six hundred seventy-four thousand, seven hundred seventy-seven".