472381549 has 2 divisors, whose sum is σ = 472381550. Its totient is φ = 472381548.

The previous prime is 472381543. The next prime is 472381571. The reversal of 472381549 is 945183274.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 379548324 + 92833225 = 19482^2 + 9635^2 .

It is a cyclic number.

It is not a de Polignac number, because 472381549 - 2¹³ = 472373357 is a prime.

It is a super-6 number, since 6×472381549⁶ (a number of 53 digits) contains 666666 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (472381543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236190774 + 236190775.

It is an arithmetic number, because the mean of its divisors is an integer number (236190775).

Almost surely, 2^472381549 is an apocalyptic number.

It is an amenable number.

472381549 is a deficient number, since it is larger than the sum of its proper divisors (1).

472381549 is an equidigital number, since it uses as much as digits as its factorization.

472381549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 43.

The square root of 472381549 is about 21734.3403166510. The cubic root of 472381549 is about 778.8090245346.

The spelling of 472381549 in words is "four hundred seventy-two million, three hundred eighty-one thousand, five hundred forty-nine".