475479247 has 2 divisors, whose sum is σ = 475479248. Its totient is φ = 475479246.

The previous prime is 475479241. The next prime is 475479283. The reversal of 475479247 is 742974574.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-475479247 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 475479247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (475479241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237739623 + 237739624.

It is an arithmetic number, because the mean of its divisors is an integer number (237739624).

Almost surely, 2^475479247 is an apocalyptic number.

475479247 is a deficient number, since it is larger than the sum of its proper divisors (1).

475479247 is an equidigital number, since it uses as much as digits as its factorization.

475479247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1975680, while the sum is 49.

The square root of 475479247 is about 21805.4866260765. The cubic root of 475479247 is about 780.5076943490.

The spelling of 475479247 in words is "four hundred seventy-five million, four hundred seventy-nine thousand, two hundred forty-seven".