68902277 has 2 divisors, whose sum is σ = 68902278. Its totient is φ = 68902276.

The previous prime is 68902247. The next prime is 68902283. The reversal of 68902277 is 77220986.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62188996 + 6713281 = 7886^2 + 2591^2 .

It is a cyclic number.

It is not a de Polignac number, because 68902277 - 2⁶ = 68902213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68902217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34451138 + 34451139.

It is an arithmetic number, because the mean of its divisors is an integer number (34451139).

Almost surely, 2^68902277 is an apocalyptic number.

It is an amenable number.

68902277 is a deficient number, since it is larger than the sum of its proper divisors (1).

68902277 is an equidigital number, since it uses as much as digits as its factorization.

68902277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 68902277 is about 8300.7395453658. The cubic root of 68902277 is about 409.9628699273.

The spelling of 68902277 in words is "sixty-eight million, nine hundred two thousand, two hundred seventy-seven".