476531621 has 8 divisors (see below), whose sum is σ = 492988440. Its totient is φ = 460263168.

The previous prime is 476531611. The next prime is 476531677. The reversal of 476531621 is 126135674.

It can be written as a sum of positive squares in 4 ways, for example, as 48455521 + 428076100 = 6961^2 + 20690^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 476531621 - 2⁶ = 476531557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (476531611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41936 + ... + 52073.

It is an arithmetic number, because the mean of its divisors is an integer number (61623555).

Almost surely, 2^476531621 is an apocalyptic number.

It is an amenable number.

476531621 is a deficient number, since it is larger than the sum of its proper divisors (16456819).

476531621 is a wasteful number, since it uses less digits than its factorization.

476531621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94183.

The product of its digits is 30240, while the sum is 35.

The square root of 476531621 is about 21829.6042337006. The cubic root of 476531621 is about 781.0831002963.

The spelling of 476531621 in words is "four hundred seventy-six million, five hundred thirty-one thousand, six hundred twenty-one".