473257493 has 2 divisors, whose sum is σ = 473257494. Its totient is φ = 473257492.

The previous prime is 473257489. The next prime is 473257517. The reversal of 473257493 is 394752374.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 436266769 + 36990724 = 20887^2 + 6082^2 .

It is a cyclic number.

It is not a de Polignac number, because 473257493 - 2² = 473257489 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 (473257693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236628746 + 236628747.

It is an arithmetic number, because the mean of its divisors is an integer number (236628747).

Almost surely, 2^473257493 is an apocalyptic number.

It is an amenable number.

473257493 is a deficient number, since it is larger than the sum of its proper divisors (1).

473257493 is an equidigital number, since it uses as much as digits as its factorization.

473257493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 635040, while the sum is 44.

The square root of 473257493 is about 21754.4821358726. The cubic root of 473257493 is about 779.2901129405.

The spelling of 473257493 in words is "four hundred seventy-three million, two hundred fifty-seven thousand, four hundred ninety-three".