247106047 has 2 divisors, whose sum is σ = 247106048. Its totient is φ = 247106046.

The previous prime is 247106021. The next prime is 247106051. The reversal of 247106047 is 740601742.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 247106047 - 2¹⁵ = 247073279 is a prime.

It is a super-2 number, since 2×247106047² = 122122796927932418, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (247106147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123553023 + 123553024.

It is an arithmetic number, because the mean of its divisors is an integer number (123553024).

Almost surely, 2^247106047 is an apocalyptic number.

247106047 is a deficient number, since it is larger than the sum of its proper divisors (1).

247106047 is an equidigital number, since it uses as much as digits as its factorization.

247106047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 247106047 is about 15719.6070879650. The cubic root of 247106047 is about 627.5203165858.

Adding to 247106047 its reverse (740601742), we get a palindrome (987707789).

The spelling of 247106047 in words is "two hundred forty-seven million, one hundred six thousand, forty-seven".