126896647 has 2 divisors, whose sum is σ = 126896648. Its totient is φ = 126896646.

The previous prime is 126896639. The next prime is 126896677. The reversal of 126896647 is 746698621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126896647 - 2³ = 126896639 is a prime.

It is a super-2 number, since 2×126896647² = 32205518039685218, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 126896647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126896617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63448323 + 63448324.

It is an arithmetic number, because the mean of its divisors is an integer number (63448324).

Almost surely, 2^126896647 is an apocalyptic number.

126896647 is a deficient number, since it is larger than the sum of its proper divisors (1).

126896647 is an equidigital number, since it uses as much as digits as its factorization.

126896647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 49.

The square root of 126896647 is about 11264.8411884056. The cubic root of 126896647 is about 502.5161791116.

The spelling of 126896647 in words is "one hundred twenty-six million, eight hundred ninety-six thousand, six hundred forty-seven".