5731387 has 4 divisors (see below), whose sum is σ = 5772760. Its totient is φ = 5690016.

The previous prime is 5731361. The next prime is 5731391. The reversal of 5731387 is 7831375.

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 5731387 - 2⁷ = 5731259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5731087) 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, 20478 + ... + 20755.

It is an arithmetic number, because the mean of its divisors is an integer number (1443190).

Almost surely, 2^5731387 is an apocalyptic number.

5731387 is a deficient number, since it is larger than the sum of its proper divisors (41373).

5731387 is a wasteful number, since it uses less digits than its factorization.

5731387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41372.

The product of its digits is 17640, while the sum is 34.

The square root of 5731387 is about 2394.0315369686. The cubic root of 5731387 is about 178.9588765637.

The spelling of 5731387 in words is "five million, seven hundred thirty-one thousand, three hundred eighty-seven".