5571946 has 4 divisors (see below), whose sum is σ = 8357922. Its totient is φ = 2785972.

The previous prime is 5571931. The next prime is 5571947. The reversal of 5571946 is 6491755.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6491755 = 5 ⋅1298351.

It can be written as a sum of positive squares in only one way, i.e., 5546025 + 25921 = 2355^2 + 161^2 .

It is a zygodrome in base 4.

It is not an unprimeable number, because it can be changed into a prime (5571947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1392985 + ... + 1392988.

Almost surely, 2^5571946 is an apocalyptic number.

5571946 is a deficient number, since it is larger than the sum of its proper divisors (2785976).

5571946 is a wasteful number, since it uses less digits than its factorization.

5571946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2785975.

The product of its digits is 37800, while the sum is 37.

The square root of 5571946 is about 2360.4969815698. The cubic root of 5571946 is about 177.2837649852.

The spelling of 5571946 in words is "five million, five hundred seventy-one thousand, nine hundred forty-six".