1263697 has 2 divisors, whose sum is σ = 1263698. Its totient is φ = 1263696.

The previous prime is 1263677. The next prime is 1263701. The reversal of 1263697 is 7963621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1256641 + 7056 = 1121^2 + 84^2 .

It is a cyclic number.

It is not a de Polignac number, because 1263697 - 2⁷ = 1263569 is a prime.

It is not a weakly prime, because it can be changed into another prime (1263607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631848 + 631849.

It is an arithmetic number, because the mean of its divisors is an integer number (631849).

2^1263697 is an apocalyptic number.

It is an amenable number.

1263697 is a deficient number, since it is larger than the sum of its proper divisors (1).

1263697 is an equidigital number, since it uses as much as digits as its factorization.

1263697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 34.

The square root of 1263697 is about 1124.1427845252. The cubic root of 1263697 is about 108.1137632971.

The spelling of 1263697 in words is "one million, two hundred sixty-three thousand, six hundred ninety-seven".