494890579 has 4 divisors (see below), whose sum is σ = 501669976. Its totient is φ = 488111184.

The previous prime is 494890567. The next prime is 494890631. The reversal of 494890579 is 975098494.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-494890579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (494890559) 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, 3389589 + ... + 3389734.

It is an arithmetic number, because the mean of its divisors is an integer number (125417494).

Almost surely, 2^494890579 is an apocalyptic number.

494890579 is a deficient number, since it is larger than the sum of its proper divisors (6779397).

494890579 is an equidigital number, since it uses as much as digits as its factorization.

494890579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6779396.

The product of its (nonzero) digits is 3265920, while the sum is 55.

The square root of 494890579 is about 22246.1362712719. The cubic root of 494890579 is about 790.9876974799.

It can be divided in two parts, 49 and 4890579, that added together give a triangular number (4890628 = T₃₁₂₇).

The spelling of 494890579 in words is "four hundred ninety-four million, eight hundred ninety thousand, five hundred seventy-nine".