394087 has 4 divisors (see below), whose sum is σ = 404776. Its totient is φ = 383400.

The previous prime is 394073. The next prime is 394099. The reversal of 394087 is 780493.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-394087 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 (394007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5289 + ... + 5362.

It is an arithmetic number, because the mean of its divisors is an integer number (101194).

2³⁹⁴⁰⁸⁷ is an apocalyptic number.

394087 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

394087 is a deficient number, since it is larger than the sum of its proper divisors (10689).

394087 is a wasteful number, since it uses less digits than its factorization.

394087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10688.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 394087 is about 627.7634904962. The cubic root of 394087 is about 73.3157648456.

The spelling of 394087 in words is "three hundred ninety-four thousand, eighty-seven".