249762673 has 2 divisors, whose sum is σ = 249762674. Its totient is φ = 249762672.

The previous prime is 249762671. The next prime is 249762697. The reversal of 249762673 is 376267942.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 218211984 + 31550689 = 14772^2 + 5617^2 .

It is a cyclic number.

It is not a de Polignac number, because 249762673 - 2¹ = 249762671 is a prime.

Together with 249762671, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (249762671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124881336 + 124881337.

It is an arithmetic number, because the mean of its divisors is an integer number (124881337).

Almost surely, 2^249762673 is an apocalyptic number.

It is an amenable number.

249762673 is a deficient number, since it is larger than the sum of its proper divisors (1).

249762673 is an equidigital number, since it uses as much as digits as its factorization.

249762673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 762048, while the sum is 46.

The square root of 249762673 is about 15803.8815801688. The cubic root of 249762673 is about 629.7611196464.

The spelling of 249762673 in words is "two hundred forty-nine million, seven hundred sixty-two thousand, six hundred seventy-three".