1270662797 has 2 divisors, whose sum is σ = 1270662798. Its totient is φ = 1270662796.

The previous prime is 1270662793. The next prime is 1270662803. The reversal of 1270662797 is 7972660721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 987279241 + 283383556 = 31421^2 + 16834^2 .

It is an emirp because it is prime and its reverse (7972660721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1270662797 - 2² = 1270662793 is a prime.

It is a super-2 number, since 2×1270662797² = 3229167887359726418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1270662793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635331398 + 635331399.

It is an arithmetic number, because the mean of its divisors is an integer number (635331399).

Almost surely, 2^1270662797 is an apocalyptic number.

It is an amenable number.

1270662797 is a deficient number, since it is larger than the sum of its proper divisors (1).

1270662797 is an equidigital number, since it uses as much as digits as its factorization.

1270662797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 444528, while the sum is 47.

The square root of 1270662797 is about 35646.3574155902. The cubic root of 1270662797 is about 1083.1204896144.

The spelling of 1270662797 in words is "one billion, two hundred seventy million, six hundred sixty-two thousand, seven hundred ninety-seven".