494895397 has 8 divisors (see below), whose sum is σ = 511144344. Its totient is φ = 478902528.

The previous prime is 494895389. The next prime is 494895409. The reversal of 494895397 is 793598494.

It can be written as a sum of positive squares in 4 ways, for example, as 136399041 + 358496356 = 11679^2 + 18934^2 .

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 494895397 - 2³ = 494895389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494895097) 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, 60088 + ... + 67825.

It is an arithmetic number, because the mean of its divisors is an integer number (63893043).

Almost surely, 2^494895397 is an apocalyptic number.

It is an amenable number.

494895397 is a deficient number, since it is larger than the sum of its proper divisors (16248947).

494895397 is a wasteful number, since it uses less digits than its factorization.

494895397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128039.

The product of its digits is 9797760, while the sum is 58.

The square root of 494895397 is about 22246.2445594757. The cubic root of 494895397 is about 790.9902643547.

The spelling of 494895397 in words is "four hundred ninety-four million, eight hundred ninety-five thousand, three hundred ninety-seven".