1097409 has 8 divisors (see below), whose sum is σ = 1483552. Its totient is φ = 721440.

The previous prime is 1097381. The next prime is 1097413. The reversal of 1097409 is 9047901.

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

It is not a de Polignac number, because 1097409 - 2⁵ = 1097377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1097419) 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, 2287 + ... + 2724.

It is an arithmetic number, because the mean of its divisors is an integer number (185444).

2^1097409 is an apocalyptic number.

It is an amenable number.

1097409 is a deficient number, since it is larger than the sum of its proper divisors (386143).

1097409 is an equidigital number, since it uses as much as digits as its factorization.

1097409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5087.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 1097409 is about 1047.5729091572. The cubic root of 1097409 is about 103.1468981963.

The spelling of 1097409 in words is "one million, ninety-seven thousand, four hundred nine".