471375621 has 6 divisors (see below), whose sum is σ = 680875910. Its totient is φ = 314250408.

The previous prime is 471375607. The next prime is 471375629. The reversal of 471375621 is 126573174.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 471367521 + 8100 = 21711^2 + 90^2 .

It is not a de Polignac number, because 471375621 - 2⁹ = 471375109 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 (471375629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26187526 + ... + 26187543.

Almost surely, 2^471375621 is an apocalyptic number.

It is an amenable number.

471375621 is a deficient number, since it is larger than the sum of its proper divisors (209500289).

471375621 is a wasteful number, since it uses less digits than its factorization.

471375621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52375075 (or 52375072 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 471375621 is about 21711.1865405832. The cubic root of 471375621 is about 778.2558117331.

The spelling of 471375621 in words is "four hundred seventy-one million, three hundred seventy-five thousand, six hundred twenty-one".