472773391 has 2 divisors, whose sum is σ = 472773392. Its totient is φ = 472773390.

The previous prime is 472773319. The next prime is 472773403. The reversal of 472773391 is 193377274.

Together with previous prime (472773319) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 472773391 - 2⁷ = 472773263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (472773491) 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, 236386695 + 236386696.

It is an arithmetic number, because the mean of its divisors is an integer number (236386696).

Almost surely, 2^472773391 is an apocalyptic number.

472773391 is a deficient number, since it is larger than the sum of its proper divisors (1).

472773391 is an equidigital number, since it uses as much as digits as its factorization.

472773391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 222264, while the sum is 43.

The square root of 472773391 is about 21743.3528003388. The cubic root of 472773391 is about 779.0243065423.

The spelling of 472773391 in words is "four hundred seventy-two million, seven hundred seventy-three thousand, three hundred ninety-one".