4632421 has 4 divisors (see below), whose sum is σ = 4659372. Its totient is φ = 4605472.

The previous prime is 4632403. The next prime is 4632443. The reversal of 4632421 is 1242364.

It is a happy number.

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 2515396 + 2117025 = 1586^2 + 1455^2 .

It is a cyclic number.

It is not a de Polignac number, because 4632421 - 2¹³ = 4624229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4632392 and 4632401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4630421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13216 + ... + 13561.

It is an arithmetic number, because the mean of its divisors is an integer number (1164843).

Almost surely, 2^4632421 is an apocalyptic number.

It is an amenable number.

4632421 is a deficient number, since it is larger than the sum of its proper divisors (26951).

4632421 is a wasteful number, since it uses less digits than its factorization.

4632421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26950.

The product of its digits is 1152, while the sum is 22.

The square root of 4632421 is about 2152.3059726721. The cubic root of 4632421 is about 166.7001563813.

Adding to 4632421 its reverse (1242364), we get a palindrome (5874785).

The spelling of 4632421 in words is "four million, six hundred thirty-two thousand, four hundred twenty-one".