5707891 has 4 divisors (see below), whose sum is σ = 6523312. Its totient is φ = 4892472.

The previous prime is 5707883. The next prime is 5707901. The reversal of 5707891 is 1987075.

5707891 = 900² + 901² + ... + 906².

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 5707891 - 2³ = 5707883 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5707891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5707811) 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, 407700 + ... + 407713.

It is an arithmetic number, because the mean of its divisors is an integer number (1630828).

Almost surely, 2^5707891 is an apocalyptic number.

5707891 is a deficient number, since it is larger than the sum of its proper divisors (815421).

5707891 is an equidigital number, since it uses as much as digits as its factorization.

5707891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815420.

The product of its (nonzero) digits is 17640, while the sum is 37.

The square root of 5707891 is about 2389.1192937984. The cubic root of 5707891 is about 178.7139924537.

Subtracting from 5707891 its product of nonzero digits (17640), we obtain a triangular number (5690251 = T₃₃₇₃).

The spelling of 5707891 in words is "five million, seven hundred seven thousand, eight hundred ninety-one".