494983657 has 4 divisors (see below), whose sum is σ = 565695616. Its totient is φ = 424271700.

The previous prime is 494983639. The next prime is 494983663. The reversal of 494983657 is 756389494.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-494983657 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 494983598 and 494983607.

It is not an unprimeable number, because it can be changed into a prime (494983607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35355969 + ... + 35355982.

It is an arithmetic number, because the mean of its divisors is an integer number (141423904).

Almost surely, 2^494983657 is an apocalyptic number.

It is an amenable number.

494983657 is a deficient number, since it is larger than the sum of its proper divisors (70711959).

494983657 is an equidigital number, since it uses as much as digits as its factorization.

494983657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70711958.

The product of its digits is 6531840, while the sum is 55.

The square root of 494983657 is about 22248.2281766436. The cubic root of 494983657 is about 791.0372834833.

The spelling of 494983657 in words is "four hundred ninety-four million, nine hundred eighty-three thousand, six hundred fifty-seven".