4457661 has 8 divisors (see below), whose sum is σ = 6400800. Its totient is φ = 2743152.

The previous prime is 4457657. The next prime is 4457683. The reversal of 4457661 is 1667544.

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

It is not a de Polignac number, because 4457661 - 2² = 4457657 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 4² + 4³ + 5⁹ + 7⁷ + 6⁴ + 6⁸ + 1 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4457611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57111 + ... + 57188.

It is an arithmetic number, because the mean of its divisors is an integer number (800100).

Almost surely, 2^4457661 is an apocalyptic number.

It is an amenable number.

4457661 is a deficient number, since it is larger than the sum of its proper divisors (1943139).

4457661 is a wasteful number, since it uses less digits than its factorization.

4457661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114315.

The product of its digits is 20160, while the sum is 33.

The square root of 4457661 is about 2111.3173612700. The cubic root of 4457661 is about 164.5769511528.

The spelling of 4457661 in words is "four million, four hundred fifty-seven thousand, six hundred sixty-one".