247002417247 has 4 divisors (see below), whose sum is σ = 247004515296. Its totient is φ = 247000319200.

The previous prime is 247002417209. The next prime is 247002417271. The reversal of 247002417247 is 742714200742.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 247002417247 - 2¹⁵ = 247002384479 is a prime.

It is a super-2 number, since 2×247002417247² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247002417647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 861223 + ... + 1111624.

It is an arithmetic number, because the mean of its divisors is an integer number (61751128824).

Almost surely, 2^247002417247 is an apocalyptic number.

247002417247 is a deficient number, since it is larger than the sum of its proper divisors (2098049).

247002417247 is a wasteful number, since it uses less digits than its factorization.

247002417247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2098048.

The product of its (nonzero) digits is 175616, while the sum is 40.

Adding to 247002417247 its reverse (742714200742), we get a palindrome (989716617989).

The spelling of 247002417247 in words is "two hundred forty-seven billion, two million, four hundred seventeen thousand, two hundred forty-seven".