4945217 has 4 divisors (see below), whose sum is σ = 4950660. Its totient is φ = 4939776.

The previous prime is 4945183. The next prime is 4945231. The reversal of 4945217 is 7125494.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4330561 + 614656 = 2081^2 + 784^2 .

It is a cyclic number.

It is not a de Polignac number, because 4945217 - 2⁶ = 4945153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4945267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 992 + ... + 3297.

It is an arithmetic number, because the mean of its divisors is an integer number (1237665).

Almost surely, 2^4945217 is an apocalyptic number.

It is an amenable number.

4945217 is a deficient number, since it is larger than the sum of its proper divisors (5443).

4945217 is a wasteful number, since it uses less digits than its factorization.

4945217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5442.

The product of its digits is 10080, while the sum is 32.

The square root of 4945217 is about 2223.7843870304. The cubic root of 4945217 is about 170.3707824041.

The spelling of 4945217 in words is "four million, nine hundred forty-five thousand, two hundred seventeen".