4631421 has 16 divisors (see below), whose sum is σ = 6549440. Its totient is φ = 2903040.

The previous prime is 4631413. The next prime is 4631453. The reversal of 4631421 is 1241364.

It is not a de Polignac number, because 4631421 - 2³ = 4631413 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 (4631821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10791 + ... + 11211.

It is an arithmetic number, because the mean of its divisors is an integer number (409340).

Almost surely, 2^4631421 is an apocalyptic number.

It is an amenable number.

4631421 is a deficient number, since it is larger than the sum of its proper divisors (1918019).

4631421 is a wasteful number, since it uses less digits than its factorization.

4631421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636.

The product of its digits is 576, while the sum is 21.

The square root of 4631421 is about 2152.0736511560. The cubic root of 4631421 is about 166.6881603391.

Adding to 4631421 its reverse (1241364), we get a palindrome (5872785).

The spelling of 4631421 in words is "four million, six hundred thirty-one thousand, four hundred twenty-one".