479799847 has 2 divisors, whose sum is σ = 479799848. Its totient is φ = 479799846.

The previous prime is 479799821. The next prime is 479799883. The reversal of 479799847 is 748997974.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-479799847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (479799247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239899923 + 239899924.

It is an arithmetic number, because the mean of its divisors is an integer number (239899924).

Almost surely, 2^479799847 is an apocalyptic number.

479799847 is a deficient number, since it is larger than the sum of its proper divisors (1).

479799847 is an equidigital number, since it uses as much as digits as its factorization.

479799847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32006016, while the sum is 64.

The square root of 479799847 is about 21904.3339775488. Note that the first 3 decimals coincide. The cubic root of 479799847 is about 782.8646835892.

The spelling of 479799847 in words is "four hundred seventy-nine million, seven hundred ninety-nine thousand, eight hundred forty-seven".