1099959 has 8 divisors (see below), whose sum is σ = 1676160. Its totient is φ = 628536.

The previous prime is 1099957. The next prime is 1099961. The reversal of 1099959 is 9599901.

It is an interprime number because it is at equal distance from previous prime (1099957) and next prime (1099961).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1099959 - 2¹ = 1099957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1099959.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1099957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26169 + ... + 26210.

It is an arithmetic number, because the mean of its divisors is an integer number (209520).

2^1099959 is an apocalyptic number.

1099959 is a deficient number, since it is larger than the sum of its proper divisors (576201).

1099959 is an equidigital number, since it uses as much as digits as its factorization.

1099959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52389.

The product of its (nonzero) digits is 32805, while the sum is 42.

The square root of 1099959 is about 1048.7893020049. The cubic root of 1099959 is about 103.2267289999.

The spelling of 1099959 in words is "one million, ninety-nine thousand, nine hundred fifty-nine".