247675297 has 2 divisors, whose sum is σ = 247675298. Its totient is φ = 247675296.

The previous prime is 247675271. The next prime is 247675303. The reversal of 247675297 is 792576742.

It is a happy number.

247675297 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 166513216 + 81162081 = 12904^2 + 9009^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-247675297 is a prime.

It is a super-2 number, since 2×247675297² = 122686105488076418, 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 247675297.

It is not a weakly prime, because it can be changed into another prime (247673297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123837648 + 123837649.

It is an arithmetic number, because the mean of its divisors is an integer number (123837649).

Almost surely, 2^247675297 is an apocalyptic number.

It is an amenable number.

247675297 is a deficient number, since it is larger than the sum of its proper divisors (1).

247675297 is an equidigital number, since it uses as much as digits as its factorization.

247675297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1481760, while the sum is 49.

The square root of 247675297 is about 15737.7030407871. The cubic root of 247675297 is about 628.0018129486.

The spelling of 247675297 in words is "two hundred forty-seven million, six hundred seventy-five thousand, two hundred ninety-seven".