494657397 has 24 divisors (see below), whose sum is σ = 776956544. Its totient is φ = 301441824.

The previous prime is 494657393. The next prime is 494657411. The reversal of 494657397 is 793756494.

It is a happy number.

494657397 is a `hidden beast` number, since 494 + 65 + 7 + 3 + 97 = 666.

It is not a de Polignac number, because 494657397 - 2² = 494657393 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494657393) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8473 + ... + 32574.

Almost surely, 2^494657397 is an apocalyptic number.

It is an amenable number.

494657397 is a deficient number, since it is larger than the sum of its proper divisors (282299147).

494657397 is a wasteful number, since it uses less digits than its factorization.

494657397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41169 (or 41166 counting only the distinct ones).

The product of its digits is 5715360, while the sum is 54.

The square root of 494657397 is about 22240.8946987301. The cubic root of 494657397 is about 790.8634457245.

The spelling of 494657397 in words is "four hundred ninety-four million, six hundred fifty-seven thousand, three hundred ninety-seven".