1118997 has 24 divisors (see below), whose sum is σ = 1797120. Its totient is φ = 665280.

The previous prime is 1118993. The next prime is 1119029. The reversal of 1118997 is 7998111.

It is not a de Polignac number, because 1118997 - 2² = 1118993 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1118993) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8748 + ... + 8874.

It is an arithmetic number, because the mean of its divisors is an integer number (74880).

2^1118997 is an apocalyptic number.

It is an amenable number.

1118997 is a deficient number, since it is larger than the sum of its proper divisors (678123).

1118997 is a wasteful number, since it uses less digits than its factorization.

1118997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233 (or 230 counting only the distinct ones).

The product of its digits is 4536, while the sum is 36.

The square root of 1118997 is about 1057.8265453277. The cubic root of 1118997 is about 103.8188723523.

The spelling of 1118997 in words is "one million, one hundred eighteen thousand, nine hundred ninety-seven".