394836541 has 4 divisors (see below), whose sum is σ = 430730784. Its totient is φ = 358942300.

The previous prime is 394836529. The next prime is 394836551. The reversal of 394836541 is 145638493.

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 a de Polignac number, because none of the positive numbers 2^k-394836541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394836521) 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, 17947105 + ... + 17947126.

It is an arithmetic number, because the mean of its divisors is an integer number (107682696).

Almost surely, 2^394836541 is an apocalyptic number.

It is an amenable number.

394836541 is a deficient number, since it is larger than the sum of its proper divisors (35894243).

394836541 is a wasteful number, since it uses less digits than its factorization.

394836541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35894242.

The product of its digits is 311040, while the sum is 43.

The square root of 394836541 is about 19870.4942313975. The cubic root of 394836541 is about 733.6221682935.

The spelling of 394836541 in words is "three hundred ninety-four million, eight hundred thirty-six thousand, five hundred forty-one".