4720661 has 8 divisors (see below), whose sum is σ = 5180448. Its totient is φ = 4266000.

The previous prime is 4720637. The next prime is 4720663. The reversal of 4720661 is 1660274.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4720661 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4720661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4720663) 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, 806 + ... + 3176.

It is an arithmetic number, because the mean of its divisors is an integer number (647556).

Almost surely, 2^4720661 is an apocalyptic number.

It is an amenable number.

4720661 is a deficient number, since it is larger than the sum of its proper divisors (459787).

4720661 is a wasteful number, since it uses less digits than its factorization.

4720661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2563.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 4720661 is about 2172.7082178700. The cubic root of 4720661 is about 167.7519605937.

The spelling of 4720661 in words is "four million, seven hundred twenty thousand, six hundred sixty-one".