472388885 has 4 divisors (see below), whose sum is σ = 566866668. Its totient is φ = 377911104.

The previous prime is 472388867. The next prime is 472388893. The reversal of 472388885 is 588883274.

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 204804721 + 267584164 = 14311^2 + 16358^2 .

It is a cyclic number.

It is not a de Polignac number, because 472388885 - 2¹⁶ = 472323349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47238884 + ... + 47238893.

It is an arithmetic number, because the mean of its divisors is an integer number (141716667).

Almost surely, 2^472388885 is an apocalyptic number.

It is an amenable number.

472388885 is a deficient number, since it is larger than the sum of its proper divisors (94477783).

472388885 is an equidigital number, since it uses as much as digits as its factorization.

472388885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94477782.

The product of its digits is 3440640, while the sum is 53.

The square root of 472388885 is about 21734.5090811824. The cubic root of 472388885 is about 778.8130561015.

The spelling of 472388885 in words is "four hundred seventy-two million, three hundred eighty-eight thousand, eight hundred eighty-five".