1098200837 has 4 divisors (see below), whose sum is σ = 1098604236. Its totient is φ = 1097797440.

The previous prime is 1098200827. The next prime is 1098200869. The reversal of 1098200837 is 7380028901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7380028901 = 7 ⋅1054289843.

It can be written as a sum of positive squares in 2 ways, for example, as 100020001 + 998180836 = 10001^2 + 31594^2 .

It is a cyclic number.

It is not a de Polignac number, because 1098200837 - 2⁸ = 1098200581 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1098200837.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098200827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197588 + ... + 203069.

It is an arithmetic number, because the mean of its divisors is an integer number (274651059).

Almost surely, 2^1098200837 is an apocalyptic number.

It is an amenable number.

1098200837 is a deficient number, since it is larger than the sum of its proper divisors (403399).

1098200837 is an equidigital number, since it uses as much as digits as its factorization.

1098200837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403398.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 1098200837 is about 33139.1134009346. The cubic root of 1098200837 is about 1031.7170082808.

The spelling of 1098200837 in words is "one billion, ninety-eight million, two hundred thousand, eight hundred thirty-seven".