4477661 has 2 divisors, whose sum is σ = 4477662. Its totient is φ = 4477660.

The previous prime is 4477619. The next prime is 4477667. The reversal of 4477661 is 1667744.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4368100 + 109561 = 2090^2 + 331^2 .

It is a cyclic number.

It is not a de Polignac number, because 4477661 - 2¹⁴ = 4461277 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4477667) 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 as a sum of consecutive naturals, namely, 2238830 + 2238831.

It is an arithmetic number, because the mean of its divisors is an integer number (2238831).

Almost surely, 2^4477661 is an apocalyptic number.

It is an amenable number.

4477661 is a deficient number, since it is larger than the sum of its proper divisors (1).

4477661 is an equidigital number, since it uses as much as digits as its factorization.

4477661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28224, while the sum is 35.

The square root of 4477661 is about 2116.0484398992. The cubic root of 4477661 is about 164.8227174554.

The spelling of 4477661 in words is "four million, four hundred seventy-seven thousand, six hundred sixty-one".