472805393 has 2 divisors, whose sum is σ = 472805394. Its totient is φ = 472805392.

The previous prime is 472805387. The next prime is 472805407. The reversal of 472805393 is 393508274.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 438148624 + 34656769 = 20932^2 + 5887^2 .

It is a cyclic number.

It is not a de Polignac number, because 472805393 - 2¹⁶ = 472739857 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 472805393.

It is not a weakly prime, because it can be changed into another prime (472805353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236402696 + 236402697.

It is an arithmetic number, because the mean of its divisors is an integer number (236402697).

Almost surely, 2^472805393 is an apocalyptic number.

It is an amenable number.

472805393 is a deficient number, since it is larger than the sum of its proper divisors (1).

472805393 is an equidigital number, since it uses as much as digits as its factorization.

472805393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 472805393 is about 21744.0886909523. The cubic root of 472805393 is about 779.0418835139.

The spelling of 472805393 in words is "four hundred seventy-two million, eight hundred five thousand, three hundred ninety-three".