5631406 has 8 divisors (see below), whose sum is σ = 9215064. Its totient is φ = 2559720.

The previous prime is 5631401. The next prime is 5631413. The reversal of 5631406 is 6041365.

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

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 3 ways as a sum of consecutive naturals, for example, 127965 + ... + 128008.

It is an arithmetic number, because the mean of its divisors is an integer number (1151883).

Almost surely, 2^5631406 is an apocalyptic number.

5631406 is a deficient number, since it is larger than the sum of its proper divisors (3583658).

5631406 is a wasteful number, since it uses less digits than its factorization.

5631406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255986.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 5631406 is about 2373.0583642212. The cubic root of 5631406 is about 177.9121520816.

The spelling of 5631406 in words is "five million, six hundred thirty-one thousand, four hundred six".