4455661 has 8 divisors (see below), whose sum is σ = 5256704. Its totient is φ = 3695760.

The previous prime is 4455641. The next prime is 4455667. The reversal of 4455661 is 1665544.

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

It is a cyclic number.

It is not a de Polignac number, because 4455661 - 2⁷ = 4455533 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4455667) 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, 10050 + ... + 10483.

It is an arithmetic number, because the mean of its divisors is an integer number (657088).

Almost surely, 2^4455661 is an apocalyptic number.

It is an amenable number.

4455661 is a deficient number, since it is larger than the sum of its proper divisors (801043).

4455661 is a wasteful number, since it uses less digits than its factorization.

4455661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20571.

The product of its digits is 14400, while the sum is 31.

The square root of 4455661 is about 2110.8436701945. The cubic root of 4455661 is about 164.5523341214.

The spelling of 4455661 in words is "four million, four hundred fifty-five thousand, six hundred sixty-one".