8748731 has 2 divisors, whose sum is σ = 8748732. Its totient is φ = 8748730.

The previous prime is 8748713. The next prime is 8748739. The reversal of 8748731 is 1378478.

Together with previous prime (8748713) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8748731 is a prime.

It is a super-2 number, since 2×8748731² = 153080588220722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8748739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4374365 + 4374366.

It is an arithmetic number, because the mean of its divisors is an integer number (4374366).

Almost surely, 2^8748731 is an apocalyptic number.

8748731 is a deficient number, since it is larger than the sum of its proper divisors (1).

8748731 is an equidigital number, since it uses as much as digits as its factorization.

8748731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37632, while the sum is 38.

The square root of 8748731 is about 2957.8253836222. The cubic root of 8748731 is about 206.0543027735.

The spelling of 8748731 in words is "eight million, seven hundred forty-eight thousand, seven hundred thirty-one".