248867987 has 2 divisors, whose sum is σ = 248867988. Its totient is φ = 248867986.

The previous prime is 248867929. The next prime is 248868001. The reversal of 248867987 is 789768842.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 248867987 - 2¹⁸ = 248605843 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (248867917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124433993 + 124433994.

It is an arithmetic number, because the mean of its divisors is an integer number (124433994).

Almost surely, 2^248867987 is an apocalyptic number.

248867987 is a deficient number, since it is larger than the sum of its proper divisors (1).

248867987 is an equidigital number, since it uses as much as digits as its factorization.

248867987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10838016, while the sum is 59.

The square root of 248867987 is about 15775.5502915112. The cubic root of 248867987 is about 629.0082548501.

The spelling of 248867987 in words is "two hundred forty-eight million, eight hundred sixty-seven thousand, nine hundred eighty-seven".