472449427 has 2 divisors, whose sum is σ = 472449428. Its totient is φ = 472449426.

The previous prime is 472449409. The next prime is 472449443. The reversal of 472449427 is 724944274.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-472449427 is a prime.

It is a super-2 number, since 2×472449427² = 446416922145256658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (472429427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236224713 + 236224714.

It is an arithmetic number, because the mean of its divisors is an integer number (236224714).

Almost surely, 2^472449427 is an apocalyptic number.

472449427 is a deficient number, since it is larger than the sum of its proper divisors (1).

472449427 is an equidigital number, since it uses as much as digits as its factorization.

472449427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 451584, while the sum is 43.

The square root of 472449427 is about 21735.9017986372. The cubic root of 472449427 is about 778.8463259260.

The spelling of 472449427 in words is "four hundred seventy-two million, four hundred forty-nine thousand, four hundred twenty-seven".