472951909 has 2 divisors, whose sum is σ = 472951910. Its totient is φ = 472951908.

The previous prime is 472951891. The next prime is 472951931. The reversal of 472951909 is 909159274.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 447449409 + 25502500 = 21153^2 + 5050^2 .

It is a cyclic number.

It is not a de Polignac number, because 472951909 - 2¹⁷ = 472820837 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (472951949) 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 as a sum of consecutive naturals, namely, 236475954 + 236475955.

It is an arithmetic number, because the mean of its divisors is an integer number (236475955).

Almost surely, 2^472951909 is an apocalyptic number.

It is an amenable number.

472951909 is a deficient number, since it is larger than the sum of its proper divisors (1).

472951909 is an equidigital number, since it uses as much as digits as its factorization.

472951909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 204120, while the sum is 46.

The square root of 472951909 is about 21747.4575295596. The cubic root of 472951909 is about 779.1223467192.

The spelling of 472951909 in words is "four hundred seventy-two million, nine hundred fifty-one thousand, nine hundred nine".