493732861 has 2 divisors, whose sum is σ = 493732862. Its totient is φ = 493732860.

The previous prime is 493732829. The next prime is 493732867. The reversal of 493732861 is 168237394.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 353665636 + 140067225 = 18806^2 + 11835^2 .

It is a cyclic number.

It is not a de Polignac number, because 493732861 - 2⁵ = 493732829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (493732867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246866430 + 246866431.

It is an arithmetic number, because the mean of its divisors is an integer number (246866431).

Almost surely, 2^493732861 is an apocalyptic number.

It is an amenable number.

493732861 is a deficient number, since it is larger than the sum of its proper divisors (1).

493732861 is an equidigital number, since it uses as much as digits as its factorization.

493732861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 43.

The square root of 493732861 is about 22220.1003823115. The cubic root of 493732861 is about 790.3704191426.

The spelling of 493732861 in words is "four hundred ninety-three million, seven hundred thirty-two thousand, eight hundred sixty-one".