394487 has 8 divisors (see below), whose sum is σ = 416640. Its totient is φ = 372960.

The previous prime is 394481. The next prime is 394489. The reversal of 394487 is 784493.

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 394487 - 2¹² = 390391 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 (394481) 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, 1658 + ... + 1880.

It is an arithmetic number, because the mean of its divisors is an integer number (52080).

2³⁹⁴⁴⁸⁷ is an apocalyptic number.

394487 is a deficient number, since it is larger than the sum of its proper divisors (22153).

394487 is a wasteful number, since it uses less digits than its factorization.

394487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313.

The product of its digits is 24192, while the sum is 35.

The square root of 394487 is about 628.0820010158. The cubic root of 394487 is about 73.3405617301.

The spelling of 394487 in words is "three hundred ninety-four thousand, four hundred eighty-seven".