394497 has 16 divisors (see below), whose sum is σ = 616000. Its totient is φ = 248832.

The previous prime is 394489. The next prime is 394501. The reversal of 394497 is 794493.

It is not a de Polignac number, because 394497 - 2³ = 394489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (394897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129 + ... + 897.

It is an arithmetic number, because the mean of its divisors is an integer number (38500).

2³⁹⁴⁴⁹⁷ is an apocalyptic number.

394497 is the 513-rd pentagonal number.

It is an amenable number.

394497 is a deficient number, since it is larger than the sum of its proper divisors (221503).

394497 is a wasteful number, since it uses less digits than its factorization.

394497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797 (or 791 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 394497 is about 628.0899617093. The cubic root of 394497 is about 73.3411814374.

The spelling of 394497 in words is "three hundred ninety-four thousand, four hundred ninety-seven".