68884877 has 2 divisors, whose sum is σ = 68884878. Its totient is φ = 68884876.

The previous prime is 68884873. The next prime is 68884891. The reversal of 68884877 is 77848886.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38700841 + 30184036 = 6221^2 + 5494^2 .

It is a cyclic number.

It is not a de Polignac number, because 68884877 - 2² = 68884873 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68884873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34442438 + 34442439.

It is an arithmetic number, because the mean of its divisors is an integer number (34442439).

Almost surely, 2^68884877 is an apocalyptic number.

It is an amenable number.

68884877 is a deficient number, since it is larger than the sum of its proper divisors (1).

68884877 is an equidigital number, since it uses as much as digits as its factorization.

68884877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4816896, while the sum is 56.

The square root of 68884877 is about 8299.6913798044. The cubic root of 68884877 is about 409.9283574999.

The spelling of 68884877 in words is "sixty-eight million, eight hundred eighty-four thousand, eight hundred seventy-seven".