5404391 has 4 divisors (see below), whose sum is σ = 5413392. Its totient is φ = 5395392.

The previous prime is 5404381. The next prime is 5404393. The reversal of 5404391 is 1934045.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1934045 = 5 ⋅386809.

It is a cyclic number.

It is not a de Polignac number, because 5404391 - 2⁶ = 5404327 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5404391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5404393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3530 + ... + 4823.

It is an arithmetic number, because the mean of its divisors is an integer number (1353348).

Almost surely, 2^5404391 is an apocalyptic number.

5404391 is a deficient number, since it is larger than the sum of its proper divisors (9001).

5404391 is an equidigital number, since it uses as much as digits as its factorization.

5404391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9000.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 5404391 is about 2324.7346085091. The cubic root of 5404391 is about 175.4886046015.

The spelling of 5404391 in words is "five million, four hundred four thousand, three hundred ninety-one".