424483721 has 4 divisors (see below), whose sum is σ = 435956292. Its totient is φ = 413011152.

The previous prime is 424483687. The next prime is 424483723. The reversal of 424483721 is 127384424.

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 162205696 + 262278025 = 12736^2 + 16195^2 .

It is a cyclic number.

It is not a de Polignac number, because 424483721 - 2¹⁰ = 424482697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (424483723) 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, 5736230 + ... + 5736303.

It is an arithmetic number, because the mean of its divisors is an integer number (108989073).

Almost surely, 2^424483721 is an apocalyptic number.

It is an amenable number.

424483721 is a deficient number, since it is larger than the sum of its proper divisors (11472571).

424483721 is a wasteful number, since it uses less digits than its factorization.

424483721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11472570.

The product of its digits is 43008, while the sum is 35.

The square root of 424483721 is about 20603.0027180506. The cubic root of 424483721 is about 751.5427331973.

The spelling of 424483721 in words is "four hundred twenty-four million, four hundred eighty-three thousand, seven hundred twenty-one".