1098364439 has 2 divisors, whose sum is σ = 1098364440. Its totient is φ = 1098364438.

The previous prime is 1098364429. The next prime is 1098364469. The reversal of 1098364439 is 9344638901.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1098364439 - 2²⁴ = 1081587223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1098364393 and 1098364402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1098364429) 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, 549182219 + 549182220.

It is an arithmetic number, because the mean of its divisors is an integer number (549182220).

Almost surely, 2^1098364439 is an apocalyptic number.

1098364439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1098364439 is an equidigital number, since it uses as much as digits as its factorization.

1098364439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 47.

The square root of 1098364439 is about 33141.5817214568. The cubic root of 1098364439 is about 1031.7682383106.

The spelling of 1098364439 in words is "one billion, ninety-eight million, three hundred sixty-four thousand, four hundred thirty-nine".