248768987 has 2 divisors, whose sum is σ = 248768988. Its totient is φ = 248768986.

The previous prime is 248768981. The next prime is 248769029. The reversal of 248768987 is 789867842.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 248768987 - 2⁸ = 248768731 is a prime.

It is not a weakly prime, because it can be changed into another prime (248768981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124384493 + 124384494.

It is an arithmetic number, because the mean of its divisors is an integer number (124384494).

Almost surely, 2^248768987 is an apocalyptic number.

248768987 is a deficient number, since it is larger than the sum of its proper divisors (1).

248768987 is an equidigital number, since it uses as much as digits as its factorization.

248768987 is an odious number, because the sum of its binary digits is odd.

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

The square root of 248768987 is about 15772.4122124677. The cubic root of 248768987 is about 628.9248370281.

The spelling of 248768987 in words is "two hundred forty-eight million, seven hundred sixty-eight thousand, nine hundred eighty-seven".