5631405 has 16 divisors (see below), whose sum is σ = 9703680. Its totient is φ = 2772288.

The previous prime is 5631401. The next prime is 5631413. The reversal of 5631405 is 5041365.

It is not a de Polignac number, because 5631405 - 2² = 5631401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5631401) 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, 14245 + ... + 14634.

It is an arithmetic number, because the mean of its divisors is an integer number (606480).

Almost surely, 2^5631405 is an apocalyptic number.

It is an amenable number.

5631405 is a deficient number, since it is larger than the sum of its proper divisors (4072275).

5631405 is a wasteful number, since it uses less digits than its factorization.

5631405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28900.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 5631405 is about 2373.0581535226. The cubic root of 5631405 is about 177.9121415507.

The spelling of 5631405 in words is "five million, six hundred thirty-one thousand, four hundred five".