4959221 has 4 divisors (see below), whose sum is σ = 5093292. Its totient is φ = 4825152.

The previous prime is 4959197. The next prime is 4959277. The reversal of 4959221 is 1229594.

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 3724900 + 1234321 = 1930^2 + 1111^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4959221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4955221) 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, 66980 + ... + 67053.

It is an arithmetic number, because the mean of its divisors is an integer number (1273323).

Almost surely, 2^4959221 is an apocalyptic number.

It is an amenable number.

4959221 is a deficient number, since it is larger than the sum of its proper divisors (134071).

4959221 is a wasteful number, since it uses less digits than its factorization.

4959221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134070.

The product of its digits is 6480, while the sum is 32.

The square root of 4959221 is about 2226.9308476017. The cubic root of 4959221 is about 170.5314510426.

The spelling of 4959221 in words is "four million, nine hundred fifty-nine thousand, two hundred twenty-one".