4737421 has 4 divisors (see below), whose sum is σ = 5101852. Its totient is φ = 4372992.

The previous prime is 4737413. The next prime is 4737433. The reversal of 4737421 is 1247374.

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 264196 + 4473225 = 514^2 + 2115^2 .

It is not a de Polignac number, because 4737421 - 2³ = 4737413 is a prime.

It is a Duffinian number.

4737421 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4737421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4737461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182196 + ... + 182221.

It is an arithmetic number, because the mean of its divisors is an integer number (1275463).

Almost surely, 2^4737421 is an apocalyptic number.

It is an amenable number.

4737421 is a deficient number, since it is larger than the sum of its proper divisors (364431).

4737421 is a wasteful number, since it uses less digits than its factorization.

4737421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364430.

The product of its digits is 4704, while the sum is 28.

The square root of 4737421 is about 2176.5617381549. The cubic root of 4737421 is about 167.9502521826.

The spelling of 4737421 in words is "four million, seven hundred thirty-seven thousand, four hundred twenty-one".