5581946 has 8 divisors (see below), whose sum is σ = 8416884. Its totient is φ = 2776320.

The previous prime is 5581937. The next prime is 5581963. The reversal of 5581946 is 6491855.

It can be written as a sum of positive squares in 2 ways, for example, as 4669921 + 912025 = 2161^2 + 955^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×5581946² = 62316242293832, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6845 + ... + 7616.

Almost surely, 2^5581946 is an apocalyptic number.

5581946 is a deficient number, since it is larger than the sum of its proper divisors (2834938).

5581946 is a wasteful number, since it uses less digits than its factorization.

5581946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14656.

The product of its digits is 43200, while the sum is 38.

The square root of 5581946 is about 2362.6142300426. The cubic root of 5581946 is about 177.3897589613.

Subtracting 5581946 from its reverse (6491855), we obtain a palindrome (909909).

The spelling of 5581946 in words is "five million, five hundred eighty-one thousand, nine hundred forty-six".