472749847 has 2 divisors, whose sum is σ = 472749848. Its totient is φ = 472749846.

The previous prime is 472749769. The next prime is 472749853. The reversal of 472749847 is 748947274.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 472749847 - 2²⁷ = 338532119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 472749794 and 472749803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (472749857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236374923 + 236374924.

It is an arithmetic number, because the mean of its divisors is an integer number (236374924).

Almost surely, 2^472749847 is an apocalyptic number.

472749847 is a deficient number, since it is larger than the sum of its proper divisors (1).

472749847 is an equidigital number, since it uses as much as digits as its factorization.

472749847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3161088, while the sum is 52.

The square root of 472749847 is about 21742.8113867549. The cubic root of 472749847 is about 779.0113745872.

It can be divided in two parts, 47274 and 9847, that added together give a square (57121 = 239²).

The spelling of 472749847 in words is "four hundred seventy-two million, seven hundred forty-nine thousand, eight hundred forty-seven".