247674047 has 2 divisors, whose sum is σ = 247674048. Its totient is φ = 247674046.

The previous prime is 247674043. The next prime is 247674059. The reversal of 247674047 is 740476742.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 247674047 - 2² = 247674043 is a prime.

It is a super-2 number, since 2×247674047² = 122684867114716418, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 247673995 and 247674013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (247674043) 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, 123837023 + 123837024.

It is an arithmetic number, because the mean of its divisors is an integer number (123837024).

Almost surely, 2^247674047 is an apocalyptic number.

247674047 is a deficient number, since it is larger than the sum of its proper divisors (1).

247674047 is an equidigital number, since it uses as much as digits as its factorization.

247674047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 263424, while the sum is 41.

The square root of 247674047 is about 15737.6633271906. The cubic root of 247674047 is about 628.0007564530. Note that the first 3 decimals are identical.

The spelling of 247674047 in words is "two hundred forty-seven million, six hundred seventy-four thousand, forty-seven".