4689421 has 4 divisors (see below), whose sum is σ = 5115744. Its totient is φ = 4263100.

The previous prime is 4689413. The next prime is 4689427. The reversal of 4689421 is 1249864.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4689421 - 2³ = 4689413 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 (4689427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213145 + ... + 213166.

It is an arithmetic number, because the mean of its divisors is an integer number (1278936).

Almost surely, 2^4689421 is an apocalyptic number.

It is an amenable number.

4689421 is a deficient number, since it is larger than the sum of its proper divisors (426323).

4689421 is a wasteful number, since it uses less digits than its factorization.

4689421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426322.

The product of its digits is 13824, while the sum is 34.

The square root of 4689421 is about 2165.5070999653. The cubic root of 4689421 is about 167.3810962773.

It can be divided in two parts, 468 and 9421, that added together give a palindrome (9889).

The spelling of 4689421 in words is "four million, six hundred eighty-nine thousand, four hundred twenty-one".