494484493 has 2 divisors, whose sum is σ = 494484494. Its totient is φ = 494484492.

The previous prime is 494484479. The next prime is 494484581. The reversal of 494484493 is 394484494.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 494484169 + 324 = 22237^2 + 18^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-494484493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (494484413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247242246 + 247242247.

It is an arithmetic number, because the mean of its divisors is an integer number (247242247).

Almost surely, 2^494484493 is an apocalyptic number.

It is an amenable number.

494484493 is a deficient number, since it is larger than the sum of its proper divisors (1).

494484493 is an equidigital number, since it uses as much as digits as its factorization.

494484493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1990656, while the sum is 49.

The square root of 494484493 is about 22237.0072851542. The cubic root of 494484493 is about 790.7712880751.

Subtracting from 494484493 its reverse (394484494), we obtain a palindrome (99999999).

The spelling of 494484493 in words is "four hundred ninety-four million, four hundred eighty-four thousand, four hundred ninety-three".