4720845 has 8 divisors (see below), whose sum is σ = 7553376. Its totient is φ = 2517776.

The previous prime is 4720843. The next prime is 4720853. The reversal of 4720845 is 5480274.

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 4720845 - 2¹ = 4720843 is a prime.

4720845 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4720843) 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, 157347 + ... + 157376.

It is an arithmetic number, because the mean of its divisors is an integer number (944172).

Almost surely, 2^4720845 is an apocalyptic number.

It is an amenable number.

4720845 is a deficient number, since it is larger than the sum of its proper divisors (2832531).

4720845 is a wasteful number, since it uses less digits than its factorization.

4720845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314731.

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 4720845 is about 2172.7505609250. The cubic root of 4720845 is about 167.7541400879.

It can be divided in two parts, 4720 and 845, that added together give a triangular number (5565 = T₁₀₅).

The spelling of 4720845 in words is "four million, seven hundred twenty thousand, eight hundred forty-five".