472223887 has 2 divisors, whose sum is σ = 472223888. Its totient is φ = 472223886.

The previous prime is 472223867. The next prime is 472223897. The reversal of 472223887 is 788322274.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 472223887 - 2¹⁵ = 472191119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (472223867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236111943 + 236111944.

It is an arithmetic number, because the mean of its divisors is an integer number (236111944).

Almost surely, 2^472223887 is an apocalyptic number.

472223887 is a deficient number, since it is larger than the sum of its proper divisors (1).

472223887 is an equidigital number, since it uses as much as digits as its factorization.

472223887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 301056, while the sum is 43.

The square root of 472223887 is about 21730.7129887632. The cubic root of 472223887 is about 778.7223698294.

The spelling of 472223887 in words is "four hundred seventy-two million, two hundred twenty-three thousand, eight hundred eighty-seven".