394237 has 4 divisors (see below), whose sum is σ = 396000. Its totient is φ = 392476.

The previous prime is 394223. The next prime is 394241. The reversal of 394237 is 732493.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 394237 - 2¹⁵ = 361469 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 (394637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 487 + ... + 1012.

It is an arithmetic number, because the mean of its divisors is an integer number (99000).

2³⁹⁴²³⁷ is an apocalyptic number.

It is an amenable number.

394237 is a deficient number, since it is larger than the sum of its proper divisors (1763).

394237 is a wasteful number, since it uses less digits than its factorization.

394237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1762.

The product of its digits is 4536, while the sum is 28.

The square root of 394237 is about 627.8829508754. The cubic root of 394237 is about 73.3250656428.

The spelling of 394237 in words is "three hundred ninety-four thousand, two hundred thirty-seven".