493474889 has 2 divisors, whose sum is σ = 493474890. Its totient is φ = 493474888.

The previous prime is 493474871. The next prime is 493474903. The reversal of 493474889 is 988474394.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 492484864 + 990025 = 22192^2 + 995^2 .

It is a cyclic number.

It is not a de Polignac number, because 493474889 - 2⁸ = 493474633 is a prime.

It is not a weakly prime, because it can be changed into another prime (493474819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246737444 + 246737445.

It is an arithmetic number, because the mean of its divisors is an integer number (246737445).

Almost surely, 2^493474889 is an apocalyptic number.

It is an amenable number.

493474889 is a deficient number, since it is larger than the sum of its proper divisors (1).

493474889 is an equidigital number, since it uses as much as digits as its factorization.

493474889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6967296, while the sum is 56.

The square root of 493474889 is about 22214.2946995848. The cubic root of 493474889 is about 790.2327408047.

The spelling of 493474889 in words is "four hundred ninety-three million, four hundred seventy-four thousand, eight hundred eighty-nine".