5441661 has 10 divisors (see below), whose sum is σ = 8129022. Its totient is φ = 3627720.

The previous prime is 5441659. The next prime is 5441663. The reversal of 5441661 is 1661445.

It is an interprime number because it is at equal distance from previous prime (5441659) and next prime (5441663).

It can be written as a sum of positive squares in only one way, i.e., 5433561 + 8100 = 2331^2 + 90^2 .

It is not a de Polignac number, because 5441661 - 2¹ = 5441659 is a prime.

It is a super-2 number, since 2×5441661² = 59223348877842, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

5441661 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5441663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 33510 + ... + 33671.

Almost surely, 2^5441661 is an apocalyptic number.

It is an amenable number.

5441661 is a deficient number, since it is larger than the sum of its proper divisors (2687361).

5441661 is an equidigital number, since it uses as much as digits as its factorization.

5441661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67193 (or 67184 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 5441661 is about 2332.7368046996. The cubic root of 5441661 is about 175.8910849033.

The spelling of 5441661 in words is "five million, four hundred forty-one thousand, six hundred sixty-one".