4272845 has 4 divisors (see below), whose sum is σ = 5127420. Its totient is φ = 3418272.

The previous prime is 4272841. The next prime is 4272859. The reversal of 4272845 is 5482724.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1406596 + 2866249 = 1186^2 + 1693^2 .

It is a cyclic number.

It is not a de Polignac number, because 4272845 - 2² = 4272841 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4272841) 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, 427280 + ... + 427289.

It is an arithmetic number, because the mean of its divisors is an integer number (1281855).

Almost surely, 2^4272845 is an apocalyptic number.

It is an amenable number.

4272845 is a deficient number, since it is larger than the sum of its proper divisors (854575).

4272845 is an equidigital number, since it uses as much as digits as its factorization.

4272845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854574.

The product of its digits is 17920, while the sum is 32.

The square root of 4272845 is about 2067.0861133489. The cubic root of 4272845 is about 162.2703026897.

The spelling of 4272845 in words is "four million, two hundred seventy-two thousand, eight hundred forty-five".