268421077 has 2 divisors, whose sum is σ = 268421078. Its totient is φ = 268421076.

The previous prime is 268421059. The next prime is 268421099. The reversal of 268421077 is 770124862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192626641 + 75794436 = 13879^2 + 8706^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268421077 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268421047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134210538 + 134210539.

It is an arithmetic number, because the mean of its divisors is an integer number (134210539).

Almost surely, 2^268421077 is an apocalyptic number.

It is an amenable number.

268421077 is a deficient number, since it is larger than the sum of its proper divisors (1).

268421077 is an equidigital number, since it uses as much as digits as its factorization.

268421077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 268421077 is about 16383.5611818676. The cubic root of 268421077 is about 645.0680592405.

The spelling of 268421077 in words is "two hundred sixty-eight million, four hundred twenty-one thousand, seventy-seven".