494949517 has 2 divisors, whose sum is σ = 494949518. Its totient is φ = 494949516.

The previous prime is 494949491. The next prime is 494949523. The reversal of 494949517 is 715949494.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 284293321 + 210656196 = 16861^2 + 14514^2 .

It is a cyclic number.

It is not a de Polignac number, because 494949517 - 2²³ = 486560909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (494949817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247474758 + 247474759.

It is an arithmetic number, because the mean of its divisors is an integer number (247474759).

Almost surely, 2^494949517 is an apocalyptic number.

It is an amenable number.

494949517 is a deficient number, since it is larger than the sum of its proper divisors (1).

494949517 is an equidigital number, since it uses as much as digits as its factorization.

494949517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 52.

The square root of 494949517 is about 22247.4609113040. The cubic root of 494949517 is about 791.0190965975.

The spelling of 494949517 in words is "four hundred ninety-four million, nine hundred forty-nine thousand, five hundred seventeen".