5409399 has 16 divisors (see below), whose sum is σ = 7549920. Its totient is φ = 3440640.

The previous prime is 5409361. The next prime is 5409403. The reversal of 5409399 is 9939045.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-5409399 is a prime.

It is a super-3 number, since 3×5409399³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5409199) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8119 + ... + 8759.

It is an arithmetic number, because the mean of its divisors is an integer number (471870).

Almost surely, 2^5409399 is an apocalyptic number.

5409399 is a deficient number, since it is larger than the sum of its proper divisors (2140521).

5409399 is a wasteful number, since it uses less digits than its factorization.

5409399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770.

The product of its (nonzero) digits is 43740, while the sum is 39.

The square root of 5409399 is about 2325.8114712934. The cubic root of 5409399 is about 175.5427936001.

The spelling of 5409399 in words is "five million, four hundred nine thousand, three hundred ninety-nine".