1107999 has 10 divisors (see below), whose sum is σ = 1655280. Its totient is φ = 738612.

The previous prime is 1107989. The next prime is 1108001. The reversal of 1107999 is 9997011.

It is not a de Polignac number, because 1107999 - 2⁹ = 1107487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1107929) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6759 + ... + 6920.

It is an arithmetic number, because the mean of its divisors is an integer number (165528).

2^1107999 is an apocalyptic number.

1107999 is a deficient number, since it is larger than the sum of its proper divisors (547281).

1107999 is an equidigital number, since it uses as much as digits as its factorization.

1107999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13691 (or 13682 counting only the distinct ones).

The product of its (nonzero) digits is 5103, while the sum is 36.

The square root of 1107999 is about 1052.6153143480. The cubic root of 1107999 is about 103.4776259135.

The spelling of 1107999 in words is "one million, one hundred seven thousand, nine hundred ninety-nine".