472763521 has 2 divisors, whose sum is σ = 472763522. Its totient is φ = 472763520.

The previous prime is 472763503. The next prime is 472763561. The reversal of 472763521 is 125367274.

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., 348195600 + 124567921 = 18660^2 + 11161^2 .

It is a cyclic number.

It is not a de Polignac number, because 472763521 - 2¹⁹ = 472239233 is a prime.

It is not a weakly prime, because it can be changed into another prime (472763561) 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, 236381760 + 236381761.

It is an arithmetic number, because the mean of its divisors is an integer number (236381761).

Almost surely, 2^472763521 is an apocalyptic number.

It is an amenable number.

472763521 is a deficient number, since it is larger than the sum of its proper divisors (1).

472763521 is an equidigital number, since it uses as much as digits as its factorization.

472763521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70560, while the sum is 37.

The square root of 472763521 is about 21743.1258332375. The cubic root of 472763521 is about 779.0188853239.

The spelling of 472763521 in words is "four hundred seventy-two million, seven hundred sixty-three thousand, five hundred twenty-one".