5687971 has 4 divisors (see below), whose sum is σ = 5826744. Its totient is φ = 5549200.

The previous prime is 5687959. The next prime is 5687977. The reversal of 5687971 is 1797865.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5687971 - 2⁹ = 5687459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5687977) 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, 69325 + ... + 69406.

It is an arithmetic number, because the mean of its divisors is an integer number (1456686).

Almost surely, 2^5687971 is an apocalyptic number.

5687971 is a deficient number, since it is larger than the sum of its proper divisors (138773).

5687971 is a wasteful number, since it uses less digits than its factorization.

5687971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138772.

The product of its digits is 105840, while the sum is 43.

The square root of 5687971 is about 2384.9467499296. The cubic root of 5687971 is about 178.5058518222.

The spelling of 5687971 in words is "five million, six hundred eighty-seven thousand, nine hundred seventy-one".