248906687 has 2 divisors, whose sum is σ = 248906688. Its totient is φ = 248906686.

The previous prime is 248906641. The next prime is 248906699. The reversal of 248906687 is 786609842.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 248906687 - 2⁸ = 248906431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (248906627) 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, 124453343 + 124453344.

It is an arithmetic number, because the mean of its divisors is an integer number (124453344).

Almost surely, 2^248906687 is an apocalyptic number.

248906687 is a deficient number, since it is larger than the sum of its proper divisors (1).

248906687 is an equidigital number, since it uses as much as digits as its factorization.

248906687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1161216, while the sum is 50.

The square root of 248906687 is about 15776.7768254482. The cubic root of 248906687 is about 629.0408576208.

The spelling of 248906687 in words is "two hundred forty-eight million, nine hundred six thousand, six hundred eighty-seven".