494779913 has 2 divisors, whose sum is σ = 494779914. Its totient is φ = 494779912.

The previous prime is 494779891. The next prime is 494779939. The reversal of 494779913 is 319977494.

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., 469458889 + 25321024 = 21667^2 + 5032^2 .

It is a cyclic number.

It is not a de Polignac number, because 494779913 - 2²⁴ = 478002697 is a prime.

It is not a weakly prime, because it can be changed into another prime (494779613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247389956 + 247389957.

It is an arithmetic number, because the mean of its divisors is an integer number (247389957).

Almost surely, 2^494779913 is an apocalyptic number.

It is an amenable number.

494779913 is a deficient number, since it is larger than the sum of its proper divisors (1).

494779913 is an equidigital number, since it uses as much as digits as its factorization.

494779913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1714608, while the sum is 53.

The square root of 494779913 is about 22243.6488238778. The cubic root of 494779913 is about 790.9287336242.

The spelling of 494779913 in words is "four hundred ninety-four million, seven hundred seventy-nine thousand, nine hundred thirteen".