9169409 has 8 divisors (see below), whose sum is σ = 9736488. Its totient is φ = 8605440.

The previous prime is 9169399. The next prime is 9169411. The reversal of 9169409 is 9049619.

It can be written as a sum of positive squares in 4 ways, for example, as 3717184 + 5452225 = 1928^2 + 2335^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 9169409 - 2¹² = 9165313 is a prime.

It is a super-2 number, since 2×9169409² = 168156122818562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9169429) 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, 8699 + ... + 9695.

It is an arithmetic number, because the mean of its divisors is an integer number (1217061).

Almost surely, 2^9169409 is an apocalyptic number.

It is an amenable number.

9169409 is a deficient number, since it is larger than the sum of its proper divisors (567079).

9169409 is a wasteful number, since it uses less digits than its factorization.

9169409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1555.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 9169409 is about 3028.1032016759. The cubic root of 9169409 is about 209.3054073011.

The spelling of 9169409 in words is "nine million, one hundred sixty-nine thousand, four hundred nine".