493893761 has 2 divisors, whose sum is σ = 493893762. Its totient is φ = 493893760.

The previous prime is 493893713. The next prime is 493893781. The reversal of 493893761 is 167398394.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 475240000 + 18653761 = 21800^2 + 4319^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-493893761 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (493893781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246946880 + 246946881.

It is an arithmetic number, because the mean of its divisors is an integer number (246946881).

Almost surely, 2^493893761 is an apocalyptic number.

It is an amenable number.

493893761 is a deficient number, since it is larger than the sum of its proper divisors (1).

493893761 is an equidigital number, since it uses as much as digits as its factorization.

493893761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 979776, while the sum is 50.

The square root of 493893761 is about 22223.7206830899. The cubic root of 493893761 is about 790.4562663680.

The spelling of 493893761 in words is "four hundred ninety-three million, eight hundred ninety-three thousand, seven hundred sixty-one".