87748247 has 2 divisors, whose sum is σ = 87748248. Its totient is φ = 87748246.

The previous prime is 87748217. The next prime is 87748267. The reversal of 87748247 is 74284778.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87748247 - 2⁶ = 87748183 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87748207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43874123 + 43874124.

It is an arithmetic number, because the mean of its divisors is an integer number (43874124).

Almost surely, 2^87748247 is an apocalyptic number.

87748247 is a deficient number, since it is larger than the sum of its proper divisors (1).

87748247 is an equidigital number, since it uses as much as digits as its factorization.

87748247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 702464, while the sum is 47.

The square root of 87748247 is about 9367.4034289124. The cubic root of 87748247 is about 444.3714511214.

The spelling of 87748247 in words is "eighty-seven million, seven hundred forty-eight thousand, two hundred forty-seven".