4513421 has 8 divisors (see below), whose sum is σ = 4965888. Its totient is φ = 4101900.

The previous prime is 4513417. The next prime is 4513433. The reversal of 4513421 is 1243154.

It is not a de Polignac number, because 4513421 - 2² = 4513417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4513393 and 4513402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4513471) 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, 365 + ... + 3026.

It is an arithmetic number, because the mean of its divisors is an integer number (620736).

Almost surely, 2^4513421 is an apocalyptic number.

It is an amenable number.

4513421 is a deficient number, since it is larger than the sum of its proper divisors (452467).

4513421 is an equidigital number, since it uses as much as digits as its factorization.

4513421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3424 (or 3402 counting only the distinct ones).

The product of its digits is 480, while the sum is 20.

The square root of 4513421 is about 2124.4813484707. The cubic root of 4513421 is about 165.2603297878.

Adding to 4513421 its reverse (1243154), we get a palindrome (5756575).

The spelling of 4513421 in words is "four million, five hundred thirteen thousand, four hundred twenty-one".