479077891 has 2 divisors, whose sum is σ = 479077892. Its totient is φ = 479077890.

The previous prime is 479077877. The next prime is 479077897. The reversal of 479077891 is 198770974.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 479077891 - 2¹¹ = 479075843 is a prime.

It is not a weakly prime, because it can be changed into another prime (479077897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239538945 + 239538946.

It is an arithmetic number, because the mean of its divisors is an integer number (239538946).

Almost surely, 2^479077891 is an apocalyptic number.

479077891 is a deficient number, since it is larger than the sum of its proper divisors (1).

479077891 is an equidigital number, since it uses as much as digits as its factorization.

479077891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 889056, while the sum is 52.

The square root of 479077891 is about 21887.8480212194. The cubic root of 479077891 is about 782.4718270129.

The spelling of 479077891 in words is "four hundred seventy-nine million, seventy-seven thousand, eight hundred ninety-one".