1198611 has 16 divisors (see below), whose sum is σ = 1797120. Its totient is φ = 789480.

The previous prime is 1198609. The next prime is 1198621. The reversal of 1198611 is 1168911.

It is not a de Polignac number, because 1198611 - 2¹ = 1198609 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

1198611 is a strobogrammatic number because it is the same when read upside-down.

It is not an unprimeable number, because it can be changed into a prime (1198621) 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, 2566 + ... + 2996.

It is an arithmetic number, because the mean of its divisors is an integer number (112320).

2^1198611 is an apocalyptic number.

1198611 is a deficient number, since it is larger than the sum of its proper divisors (598509).

1198611 is a wasteful number, since it uses less digits than its factorization.

1198611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543 (or 537 counting only the distinct ones).

The product of its digits is 432, while the sum is 27.

The square root of 1198611 is about 1094.8109425832. The cubic root of 1198611 is about 106.2248401788.

The spelling of 1198611 in words is "one million, one hundred ninety-eight thousand, six hundred eleven".