481615817 has 2 divisors, whose sum is σ = 481615818. Its totient is φ = 481615816.

The previous prime is 481615811. The next prime is 481615853. The reversal of 481615817 is 718516184.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 474411961 + 7203856 = 21781^2 + 2684^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-481615817 is a prime.

It is not a weakly prime, because it can be changed into another prime (481615811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240807908 + 240807909.

It is an arithmetic number, because the mean of its divisors is an integer number (240807909).

Almost surely, 2^481615817 is an apocalyptic number.

It is an amenable number.

481615817 is a deficient number, since it is larger than the sum of its proper divisors (1).

481615817 is an equidigital number, since it uses as much as digits as its factorization.

481615817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53760, while the sum is 41.

The square root of 481615817 is about 21945.7471278606. The cubic root of 481615817 is about 783.8511150232.

The spelling of 481615817 in words is "four hundred eighty-one million, six hundred fifteen thousand, eight hundred seventeen".