1098699 has 16 divisors (see below), whose sum is σ = 1692672. Its totient is φ = 620928.

The previous prime is 1098689. The next prime is 1098707. The reversal of 1098699 is 9968901.

It is not a de Polignac number, because 1098699 - 2⁵ = 1098667 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1098699.

It is not an unprimeable number, because it can be changed into a prime (1098649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2142 + ... + 2604.

It is an arithmetic number, because the mean of its divisors is an integer number (105792).

2^1098699 is an apocalyptic number.

1098699 is a deficient number, since it is larger than the sum of its proper divisors (593973).

1098699 is a wasteful number, since it uses less digits than its factorization.

1098699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586.

The product of its (nonzero) digits is 34992, while the sum is 42.

The square root of 1098699 is about 1048.1884372573. The cubic root of 1098699 is about 103.1872986291.

The spelling of 1098699 in words is "one million, ninety-eight thousand, six hundred ninety-nine".