4761221 has 8 divisors (see below), whose sum is σ = 4871520. Its totient is φ = 4652208.

The previous prime is 4761217. The next prime is 4761223. The reversal of 4761221 is 1221674.

4761221 = T₃₄₃ + T₃₄₄ + ... + T₄₀₉.

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 4761221 - 2² = 4761217 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 (4761223) 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, 11795 + ... + 12191.

It is an arithmetic number, because the mean of its divisors is an integer number (608940).

Almost surely, 2^4761221 is an apocalyptic number.

It is an amenable number.

4761221 is a deficient number, since it is larger than the sum of its proper divisors (110299).

4761221 is a wasteful number, since it uses less digits than its factorization.

4761221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643.

The product of its digits is 672, while the sum is 23.

The square root of 4761221 is about 2182.0222272012. The cubic root of 4761221 is about 168.2310337051.

Adding to 4761221 its reverse (1221674), we get a palindrome (5982895).

The spelling of 4761221 in words is "four million, seven hundred sixty-one thousand, two hundred twenty-one".