5720857 has 4 divisors (see below), whose sum is σ = 6057396. Its totient is φ = 5384320.

The previous prime is 5720839. The next prime is 5720863. The reversal of 5720857 is 7580275.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5331481 + 389376 = 2309^2 + 624^2 .

It is a cyclic number.

It is not a de Polignac number, because 5720857 - 2¹¹ = 5718809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5720807) 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, 168244 + ... + 168277.

It is an arithmetic number, because the mean of its divisors is an integer number (1514349).

Almost surely, 2^5720857 is an apocalyptic number.

It is an amenable number.

5720857 is a deficient number, since it is larger than the sum of its proper divisors (336539).

5720857 is a wasteful number, since it uses less digits than its factorization.

5720857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336538.

The product of its (nonzero) digits is 19600, while the sum is 34.

The square root of 5720857 is about 2391.8313067606. The cubic root of 5720857 is about 178.8492118809.

The spelling of 5720857 in words is "five million, seven hundred twenty thousand, eight hundred fifty-seven".