247000047 has 32 divisors (see below), whose sum is σ = 391219200. Its totient is φ = 135625728.

The previous prime is 247000043. The next prime is 247000051. The reversal of 247000047 is 740000742.

It is an interprime number because it is at equal distance from previous prime (247000043) and next prime (247000051).

It is not a de Polignac number, because 247000047 - 2² = 247000043 is a prime.

It is a super-2 number, since 2×247000047² = 122018046436004418, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 246999990 and 247000026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247000043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144703 + ... + 146399.

It is an arithmetic number, because the mean of its divisors is an integer number (12225600).

Almost surely, 2^247000047 is an apocalyptic number.

247000047 is a deficient number, since it is larger than the sum of its proper divisors (144219153).

247000047 is a wasteful number, since it uses less digits than its factorization.

247000047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1975.

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 247000047 is about 15716.2351407708. The cubic root of 247000047 is about 627.4305755377.

Adding to 247000047 its reverse (740000742), we get a palindrome (987000789).

The spelling of 247000047 in words is "two hundred forty-seven million, forty-seven", and thus it is an aban number.