472521293 has 2 divisors, whose sum is σ = 472521294. Its totient is φ = 472521292.

The previous prime is 472521233. The next prime is 472521299. The reversal of 472521293 is 392125274.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 438567364 + 33953929 = 20942^2 + 5827^2 .

It is a cyclic number.

It is not a de Polignac number, because 472521293 - 2⁸ = 472521037 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (472521299) 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, 236260646 + 236260647.

It is an arithmetic number, because the mean of its divisors is an integer number (236260647).

Almost surely, 2^472521293 is an apocalyptic number.

It is an amenable number.

472521293 is a deficient number, since it is larger than the sum of its proper divisors (1).

472521293 is an equidigital number, since it uses as much as digits as its factorization.

472521293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 35.

The square root of 472521293 is about 21737.5548992981. The cubic root of 472521293 is about 778.8858149725.

The spelling of 472521293 in words is "four hundred seventy-two million, five hundred twenty-one thousand, two hundred ninety-three".