473497391 has 2 divisors, whose sum is σ = 473497392. Its totient is φ = 473497390.

The previous prime is 473497373. The next prime is 473497403. The reversal of 473497391 is 193794374.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 473497391 - 2¹⁰ = 473496367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (473497091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236748695 + 236748696.

It is an arithmetic number, because the mean of its divisors is an integer number (236748696).

Almost surely, 2^473497391 is an apocalyptic number.

473497391 is a deficient number, since it is larger than the sum of its proper divisors (1).

473497391 is an equidigital number, since it uses as much as digits as its factorization.

473497391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 571536, while the sum is 47.

The square root of 473497391 is about 21759.9951976098. The cubic root of 473497391 is about 779.4217668233.

The spelling of 473497391 in words is "four hundred seventy-three million, four hundred ninety-seven thousand, three hundred ninety-one".