5631897 has 4 divisors (see below), whose sum is σ = 7509200. Its totient is φ = 3754596.

The previous prime is 5631893. The next prime is 5631911. The reversal of 5631897 is 7981365.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 5631897 - 2² = 5631893 is a prime.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (5631893) 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, 938647 + ... + 938652.

It is an arithmetic number, because the mean of its divisors is an integer number (1877300).

Almost surely, 2^5631897 is an apocalyptic number.

It is an amenable number.

5631897 is a deficient number, since it is larger than the sum of its proper divisors (1877303).

5631897 is a wasteful number, since it uses less digits than its factorization.

5631897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1877302.

The product of its digits is 45360, while the sum is 39.

The square root of 5631897 is about 2373.1618149633. The cubic root of 5631897 is about 177.9173226274.

The spelling of 5631897 in words is "five million, six hundred thirty-one thousand, eight hundred ninety-seven".