1090969 has 12 divisors (see below), whose sum is σ = 1240560. Its totient is φ = 951200.

The previous prime is 1090967. The next prime is 1090979. The reversal of 1090969 is 9690901.

It is a happy number.

It is not a de Polignac number, because 1090969 - 2¹ = 1090967 is a prime.

It is a super-2 number, since 2×1090969² = 2380426717922, which contains 22 as substring.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1090963) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18462 + ... + 18520.

It is an arithmetic number, because the mean of its divisors is an integer number (103380).

2^1090969 is an apocalyptic number.

It is an amenable number.

1090969 is a deficient number, since it is larger than the sum of its proper divisors (149591).

1090969 is an equidigital number, since it uses as much as digits as its factorization.

1090969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 34.

The square root of 1090969 is about 1044.4946146343. The cubic root of 1090969 is about 102.9447342316.

The spelling of 1090969 in words is "one million, ninety thousand, nine hundred sixty-nine".