438575047 has 2 divisors, whose sum is σ = 438575048. Its totient is φ = 438575046.

The previous prime is 438575041. The next prime is 438575051. The reversal of 438575047 is 740575834.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-438575047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 438574994 and 438575012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (438575041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219287523 + 219287524.

It is an arithmetic number, because the mean of its divisors is an integer number (219287524).

Almost surely, 2^438575047 is an apocalyptic number.

438575047 is a deficient number, since it is larger than the sum of its proper divisors (1).

438575047 is an equidigital number, since it uses as much as digits as its factorization.

438575047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 470400, while the sum is 43.

The square root of 438575047 is about 20942.1834343986. The cubic root of 438575047 is about 759.7685392795.

The spelling of 438575047 in words is "four hundred thirty-eight million, five hundred seventy-five thousand, forty-seven".