1110997 has 2 divisors, whose sum is σ = 1110998. Its totient is φ = 1110996.

The previous prime is 1110983. The next prime is 1111007. The reversal of 1110997 is 7990111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1110916 + 81 = 1054^2 + 9^2 .

It is an emirp because it is prime and its reverse (7990111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1110997 is a prime.

1110997 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1110917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555498 + 555499.

It is an arithmetic number, because the mean of its divisors is an integer number (555499).

2^1110997 is an apocalyptic number.

It is an amenable number.

1110997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110997 is an equidigital number, since it uses as much as digits as its factorization.

1110997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 567, while the sum is 28.

The square root of 1110997 is about 1054.0384243470. The cubic root of 1110997 is about 103.5708710462.

The spelling of 1110997 in words is "one million, one hundred ten thousand, nine hundred ninety-seven".