472771769 has 2 divisors, whose sum is σ = 472771770. Its totient is φ = 472771768.

The previous prime is 472771729. The next prime is 472771771. The reversal of 472771769 is 967177274.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 369139369 + 103632400 = 19213^2 + 10180^2 .

It is a cyclic number.

It is not a de Polignac number, because 472771769 - 2²⁸ = 204336313 is a prime.

It is a super-2 number, since 2×472771769² = 447026291126778722, which contains 22 as substring.

Together with 472771771, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (472771729) 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, 236385884 + 236385885.

It is an arithmetic number, because the mean of its divisors is an integer number (236385885).

Almost surely, 2^472771769 is an apocalyptic number.

It is an amenable number.

472771769 is a deficient number, since it is larger than the sum of its proper divisors (1).

472771769 is an equidigital number, since it uses as much as digits as its factorization.

472771769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1037232, while the sum is 50.

The square root of 472771769 is about 21743.3155015513. The cubic root of 472771769 is about 779.0234156441.

The spelling of 472771769 in words is "four hundred seventy-two million, seven hundred seventy-one thousand, seven hundred sixty-nine".