494590865 has 8 divisors (see below), whose sum is σ = 593726760. Its totient is φ = 395527552.

The previous prime is 494590861. The next prime is 494590883. The reversal of 494590865 is 568095494.

It can be written as a sum of positive squares in 4 ways, for example, as 8300161 + 486290704 = 2881^2 + 22052^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 494590865 - 2² = 494590861 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (494590861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1814 + ... + 31503.

It is an arithmetic number, because the mean of its divisors is an integer number (74215845).

Almost surely, 2^494590865 is an apocalyptic number.

It is an amenable number.

494590865 is a deficient number, since it is larger than the sum of its proper divisors (99135895).

494590865 is a wasteful number, since it uses less digits than its factorization.

494590865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36291.

The product of its (nonzero) digits is 1555200, while the sum is 50.

The square root of 494590865 is about 22239.3989352230. The cubic root of 494590865 is about 790.8279867811.

The spelling of 494590865 in words is "four hundred ninety-four million, five hundred ninety thousand, eight hundred sixty-five".