470721 has 16 divisors (see below), whose sum is σ = 665280. Its totient is φ = 295680.

The previous prime is 470719. The next prime is 470731. The reversal of 470721 is 127074.

It is not a de Polignac number, because 470721 - 2¹ = 470719 is a prime.

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 470721.

It is not an unprimeable number, because it can be changed into a prime (470711) 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, 5245 + ... + 5333.

It is an arithmetic number, because the mean of its divisors is an integer number (41580).

2⁴⁷⁰⁷²¹ is an apocalyptic number.

470721 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

470721 is a deficient number, since it is larger than the sum of its proper divisors (194559).

470721 is a wasteful number, since it uses less digits than its factorization.

470721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176.

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 470721 is about 686.0911018225. The cubic root of 470721 is about 77.7895378287.

Adding to 470721 its reverse (127074), we get a palindrome (597795).

The spelling of 470721 in words is "four hundred seventy thousand, seven hundred twenty-one", and thus it is an iban number.