1098856199 has 8 divisors (see below), whose sum is σ = 1256383008. Its totient is φ = 941466240.

The previous prime is 1098856189. The next prime is 1098856207. The reversal of 1098856199 is 9916588901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1098856199 - 2¹⁶ = 1098790663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098856169) 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 in 7 ways as a sum of consecutive naturals, for example, 16382 + ... + 49659.

It is an arithmetic number, because the mean of its divisors is an integer number (157047876).

Almost surely, 2^1098856199 is an apocalyptic number.

1098856199 is a deficient number, since it is larger than the sum of its proper divisors (157526809).

1098856199 is an equidigital number, since it uses as much as digits as its factorization.

1098856199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68425.

The product of its (nonzero) digits is 1399680, while the sum is 56.

The square root of 1098856199 is about 33148.9999698332. Note that the first 4 decimals coincide. The cubic root of 1098856199 is about 1031.9221965136.

The spelling of 1098856199 in words is "one billion, ninety-eight million, eight hundred fifty-six thousand, one hundred ninety-nine".