8747251 has 2 divisors, whose sum is σ = 8747252. Its totient is φ = 8747250.

The previous prime is 8747243. The next prime is 8747257. The reversal of 8747251 is 1527478.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8747251 - 2³ = 8747243 is a prime.

8747251 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (8747257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4373625 + 4373626.

It is an arithmetic number, because the mean of its divisors is an integer number (4373626).

Almost surely, 2^8747251 is an apocalyptic number.

8747251 is a deficient number, since it is larger than the sum of its proper divisors (1).

8747251 is an equidigital number, since it uses as much as digits as its factorization.

8747251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15680, while the sum is 34.

The square root of 8747251 is about 2957.5751892386. The cubic root of 8747251 is about 206.0426828953.

It can be divided in two parts, 8747 and 251, that added together give a palindrome (8998).

The spelling of 8747251 in words is "eight million, seven hundred forty-seven thousand, two hundred fifty-one".