4473661 has 4 divisors (see below), whose sum is σ = 4668192. Its totient is φ = 4279132.

The previous prime is 4473653. The next prime is 4473671. The reversal of 4473661 is 1663744.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4473661 - 2³ = 4473653 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4473611) 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, 97231 + ... + 97276.

It is an arithmetic number, because the mean of its divisors is an integer number (1167048).

Almost surely, 2^4473661 is an apocalyptic number.

It is an amenable number.

4473661 is a deficient number, since it is larger than the sum of its proper divisors (194531).

4473661 is a wasteful number, since it uses less digits than its factorization.

4473661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194530.

The product of its digits is 12096, while the sum is 31.

The square root of 4473661 is about 2115.1030707746. The cubic root of 4473661 is about 164.7736228286.

The spelling of 4473661 in words is "four million, four hundred seventy-three thousand, six hundred sixty-one".