3609399 has 8 divisors (see below), whose sum is σ = 4829440. Its totient is φ = 2397816.

The previous prime is 3609391. The next prime is 3609407. The reversal of 3609399 is 9939063.

It is an interprime number because it is at equal distance from previous prime (3609391) and next prime (3609407).

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

It is not a de Polignac number, because 3609399 - 2³ = 3609391 is a prime.

It is a super-2 number, since 2×3609399² = 26055522282402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3609391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1039 + ... + 2880.

It is an arithmetic number, because the mean of its divisors is an integer number (603680).

Almost surely, 2^3609399 is an apocalyptic number.

3609399 is a deficient number, since it is larger than the sum of its proper divisors (1220041).

3609399 is a wasteful number, since it uses less digits than its factorization.

3609399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4229.

The product of its (nonzero) digits is 39366, while the sum is 39.

The square root of 3609399 is about 1899.8418355221. The cubic root of 3609399 is about 153.3951509828.

The spelling of 3609399 in words is "three million, six hundred nine thousand, three hundred ninety-nine".