248698819 has 2 divisors, whose sum is σ = 248698820. Its totient is φ = 248698818.

The previous prime is 248698811. The next prime is 248698883. The reversal of 248698819 is 918896842.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 248698819 - 2³ = 248698811 is a prime.

It is a super-2 number, since 2×248698819² = 123702205143989522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 248698819.

It is not a weakly prime, because it can be changed into another prime (248698811) 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, 124349409 + 124349410.

It is an arithmetic number, because the mean of its divisors is an integer number (124349410).

Almost surely, 2^248698819 is an apocalyptic number.

248698819 is a deficient number, since it is larger than the sum of its proper divisors (1).

248698819 is an equidigital number, since it uses as much as digits as its factorization.

248698819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1990656, while the sum is 55.

The square root of 248698819 is about 15770.1876653387. The cubic root of 248698819 is about 628.8656997694.

The spelling of 248698819 in words is "two hundred forty-eight million, six hundred ninety-eight thousand, eight hundred nineteen".