481923857 has 2 divisors, whose sum is σ = 481923858. Its totient is φ = 481923856.

The previous prime is 481923829. The next prime is 481923889. The reversal of 481923857 is 758329184.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 454371856 + 27552001 = 21316^2 + 5249^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-481923857 is a prime.

It is not a weakly prime, because it can be changed into another prime (481923457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240961928 + 240961929.

It is an arithmetic number, because the mean of its divisors is an integer number (240961929).

Almost surely, 2^481923857 is an apocalyptic number.

It is an amenable number.

481923857 is a deficient number, since it is larger than the sum of its proper divisors (1).

481923857 is an equidigital number, since it uses as much as digits as its factorization.

481923857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 47.

The square root of 481923857 is about 21952.7642223024. The cubic root of 481923857 is about 784.0181956635.

The spelling of 481923857 in words is "four hundred eighty-one million, nine hundred twenty-three thousand, eight hundred fifty-seven".