5631047 has 4 divisors (see below), whose sum is σ = 5636136. Its totient is φ = 5625960.

The previous prime is 5631037. The next prime is 5631061. The reversal of 5631047 is 7401365.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7401365 = 5 ⋅1480273.

It is a cyclic number.

It is not a de Polignac number, because 5631047 - 2¹⁸ = 5368903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5631007) 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 3 ways as a sum of consecutive naturals, for example, 104 + ... + 3357.

It is an arithmetic number, because the mean of its divisors is an integer number (1409034).

Almost surely, 2^5631047 is an apocalyptic number.

5631047 is a deficient number, since it is larger than the sum of its proper divisors (5089).

5631047 is a wasteful number, since it uses less digits than its factorization.

5631047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5088.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 5631047 is about 2372.9827222296. The cubic root of 5631047 is about 177.9083713905.

The spelling of 5631047 in words is "five million, six hundred thirty-one thousand, forty-seven".