1198788 has 24 divisors (see below), whose sum is σ = 2815008. Its totient is φ = 397056.

The previous prime is 1198751. The next prime is 1198793. The reversal of 1198788 is 8878911.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3220 + ... + 3572.

It is an arithmetic number, because the mean of its divisors is an integer number (117292).

2^1198788 is an apocalyptic number.

It is an amenable number.

1198788 is an abundant number, since it is smaller than the sum of its proper divisors (1616220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1198788 is a wasteful number, since it uses less digits than its factorization.

1198788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643 (or 641 counting only the distinct ones).

The product of its digits is 32256, while the sum is 42.

The square root of 1198788 is about 1094.8917754737. The cubic root of 1198788 is about 106.2300686950.

The spelling of 1198788 in words is "one million, one hundred ninety-eight thousand, seven hundred eighty-eight".