479035721 has 2 divisors, whose sum is σ = 479035722. Its totient is φ = 479035720.

The previous prime is 479035699. The next prime is 479035723. The reversal of 479035721 is 127530974.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 472584121 + 6451600 = 21739^2 + 2540^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-479035721 is a prime.

Together with 479035723, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (479035723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239517860 + 239517861.

It is an arithmetic number, because the mean of its divisors is an integer number (239517861).

Almost surely, 2^479035721 is an apocalyptic number.

It is an amenable number.

479035721 is a deficient number, since it is larger than the sum of its proper divisors (1).

479035721 is an equidigital number, since it uses as much as digits as its factorization.

479035721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 479035721 is about 21886.8846801001. The cubic root of 479035721 is about 782.4488677643.

The spelling of 479035721 in words is "four hundred seventy-nine million, thirty-five thousand, seven hundred twenty-one".