472771493 has 2 divisors, whose sum is σ = 472771494. Its totient is φ = 472771492.

The previous prime is 472771469. The next prime is 472771531. The reversal of 472771493 is 394177274.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 472062529 + 708964 = 21727^2 + 842^2 .

It is a cyclic number.

It is not a de Polignac number, because 472771493 - 2¹⁴ = 472755109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (472779493) 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, 236385746 + 236385747.

It is an arithmetic number, because the mean of its divisors is an integer number (236385747).

Almost surely, 2^472771493 is an apocalyptic number.

It is an amenable number.

472771493 is a deficient number, since it is larger than the sum of its proper divisors (1).

472771493 is an equidigital number, since it uses as much as digits as its factorization.

472771493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 296352, while the sum is 44.

The square root of 472771493 is about 21743.3091547722. The cubic root of 472771493 is about 779.0232640484.

The spelling of 472771493 in words is "four hundred seventy-two million, seven hundred seventy-one thousand, four hundred ninety-three".