479771287 has 2 divisors, whose sum is σ = 479771288. Its totient is φ = 479771286.

The previous prime is 479771233. The next prime is 479771293. The reversal of 479771287 is 782177974.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-479771287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (479771087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239885643 + 239885644.

It is an arithmetic number, because the mean of its divisors is an integer number (239885644).

Almost surely, 2^479771287 is an apocalyptic number.

479771287 is a deficient number, since it is larger than the sum of its proper divisors (1).

479771287 is an equidigital number, since it uses as much as digits as its factorization.

479771287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1382976, while the sum is 52.

The square root of 479771287 is about 21903.6820420677. The cubic root of 479771287 is about 782.8491499876.

The spelling of 479771287 in words is "four hundred seventy-nine million, seven hundred seventy-one thousand, two hundred eighty-seven".