4720666 has 8 divisors (see below), whose sum is σ = 7104564. Its totient is φ = 2352480.

The previous prime is 4720663. The next prime is 4720693. The reversal of 4720666 is 6660274.

It can be written as a sum of positive squares in 2 ways, for example, as 3330625 + 1390041 = 1825^2 + 1179^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 3145 + ... + 4396.

Almost surely, 2^4720666 is an apocalyptic number.

4720666 is a deficient number, since it is larger than the sum of its proper divisors (2383898).

4720666 is a wasteful number, since it uses less digits than its factorization.

4720666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7856.

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

The square root of 4720666 is about 2172.7093685074. The cubic root of 4720666 is about 167.7520198199.

The spelling of 4720666 in words is "four million, seven hundred twenty thousand, six hundred sixty-six".