248698889 has 2 divisors, whose sum is σ = 248698890. Its totient is φ = 248698888.

The previous prime is 248698883. The next prime is 248698903. The reversal of 248698889 is 988896842.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 248220025 + 478864 = 15755^2 + 692^2 .

It is a cyclic number.

It is not a de Polignac number, because 248698889 - 2¹² = 248694793 is a prime.

It is a super-2 number, since 2×248698889² = 123702274779668642, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (248698883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124349444 + 124349445.

It is an arithmetic number, because the mean of its divisors is an integer number (124349445).

Almost surely, 2^248698889 is an apocalyptic number.

It is an amenable number.

248698889 is a deficient number, since it is larger than the sum of its proper divisors (1).

248698889 is an equidigital number, since it uses as much as digits as its factorization.

248698889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15925248, while the sum is 62.

The square root of 248698889 is about 15770.1898847160. The cubic root of 248698889 is about 628.8657587707.

The spelling of 248698889 in words is "two hundred forty-eight million, six hundred ninety-eight thousand, eight hundred eighty-nine".