4620321 has 10 divisors (see below), whose sum is σ = 6902082. Its totient is φ = 3080160.

The previous prime is 4620299. The next prime is 4620359. The reversal of 4620321 is 1230264.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3744225 + 876096 = 1935^2 + 936^2 .

It is not a de Polignac number, because 4620321 - 2⁵ = 4620289 is a prime.

It is a super-2 number, since 2×4620321² = 42694732286082, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4620294 and 4620303.

It is not an unprimeable number, because it can be changed into a prime (4620391) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 28440 + ... + 28601.

Almost surely, 2^4620321 is an apocalyptic number.

It is an amenable number.

4620321 is a deficient number, since it is larger than the sum of its proper divisors (2281761).

4620321 is an equidigital number, since it uses as much as digits as its factorization.

4620321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57053 (or 57044 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 4620321 is about 2149.4931960813. The cubic root of 4620321 is about 166.5548881613.

Adding to 4620321 its reverse (1230264), we get a palindrome (5850585).

The spelling of 4620321 in words is "four million, six hundred twenty thousand, three hundred twenty-one".