473621 has 4 divisors (see below), whose sum is σ = 475212. Its totient is φ = 472032.

The previous prime is 473617. The next prime is 473633. The reversal of 473621 is 126374.

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 280900 + 192721 = 530^2 + 439^2 .

It is a cyclic number.

It is not a de Polignac number, because 473621 - 2² = 473617 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 473621.

It is not an unprimeable number, because it can be changed into a prime (473611) 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, 200 + ... + 993.

It is an arithmetic number, because the mean of its divisors is an integer number (118803).

2⁴⁷³⁶²¹ is an apocalyptic number.

It is an amenable number.

473621 is a deficient number, since it is larger than the sum of its proper divisors (1591).

473621 is a wasteful number, since it uses less digits than its factorization.

473621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1590.

The product of its digits is 1008, while the sum is 23.

The square root of 473621 is about 688.2012786969. The cubic root of 473621 is about 77.9489584981.

Adding to 473621 its reverse (126374), we get a palindrome (599995).

The spelling of 473621 in words is "four hundred seventy-three thousand, six hundred twenty-one".