473721 has 4 divisors (see below), whose sum is σ = 631632. Its totient is φ = 315812.

The previous prime is 473719. The next prime is 473723. The reversal of 473721 is 127374.

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 an interprime number because it is at equal distance from previous prime (473719) and next prime (473723).

It is a cyclic number.

It is not a de Polignac number, because 473721 - 2¹ = 473719 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 473691 and 473700.

It is not an unprimeable number, because it can be changed into a prime (473723) 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, 78951 + ... + 78956.

It is an arithmetic number, because the mean of its divisors is an integer number (157908).

2⁴⁷³⁷²¹ is an apocalyptic number.

It is an amenable number.

473721 is a deficient number, since it is larger than the sum of its proper divisors (157911).

473721 is a wasteful number, since it uses less digits than its factorization.

473721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157910.

The product of its digits is 1176, while the sum is 24.

The square root of 473721 is about 688.2739280258. The cubic root of 473721 is about 77.9544441412.

The spelling of 473721 in words is "four hundred seventy-three thousand, seven hundred twenty-one", and thus it is an iban number.