394137 has 6 divisors (see below), whose sum is σ = 569322. Its totient is φ = 262752.

The previous prime is 394129. The next prime is 394153. The reversal of 394137 is 731493.

It can be written as a sum of positive squares in only one way, i.e., 389376 + 4761 = 624^2 + 69^2 .

It is not a de Polignac number, because 394137 - 2³ = 394129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 394137.

It is not an unprimeable number, because it can be changed into a prime (394157) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21888 + ... + 21905.

It is an arithmetic number, because the mean of its divisors is an integer number (94887).

2³⁹⁴¹³⁷ is an apocalyptic number.

It is an amenable number.

394137 is a deficient number, since it is larger than the sum of its proper divisors (175185).

394137 is a wasteful number, since it uses less digits than its factorization.

394137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43799 (or 43796 counting only the distinct ones).

The product of its digits is 2268, while the sum is 27.

The square root of 394137 is about 627.8033131483. The cubic root of 394137 is about 73.3188653735.

The spelling of 394137 in words is "three hundred ninety-four thousand, one hundred thirty-seven".