472038821 has 16 divisors (see below), whose sum is σ = 506833536. Its totient is φ = 438552576.

The previous prime is 472038733. The next prime is 472038851. The reversal of 472038821 is 128830274.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-472038821 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 (472038851) 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, 189641 + ... + 192113.

It is an arithmetic number, because the mean of its divisors is an integer number (31677096).

Almost surely, 2^472038821 is an apocalyptic number.

It is an amenable number.

472038821 is a deficient number, since it is larger than the sum of its proper divisors (34794715).

472038821 is a wasteful number, since it uses less digits than its factorization.

472038821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2732.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 472038821 is about 21726.4544047113. The cubic root of 472038821 is about 778.6206286366.

The spelling of 472038821 in words is "four hundred seventy-two million, thirty-eight thousand, eight hundred twenty-one".