394196849 has 4 divisors (see below), whose sum is σ = 402584064. Its totient is φ = 385809636.

The previous prime is 394196827. The next prime is 394196863. The reversal of 394196849 is 948691493.

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, and also an emirpimes, since its reverse is a distinct semiprime: 948691493 = 149 ⋅6367057.

It is a cyclic number.

It is not a de Polignac number, because 394196849 - 2¹⁶ = 394131313 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 394196849.

It is not an unprimeable number, because it can be changed into a prime (394196809) 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, 4193537 + ... + 4193630.

It is an arithmetic number, because the mean of its divisors is an integer number (100646016).

Almost surely, 2^394196849 is an apocalyptic number.

It is an amenable number.

394196849 is a deficient number, since it is larger than the sum of its proper divisors (8387215).

394196849 is an equidigital number, since it uses as much as digits as its factorization.

394196849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8387214.

The product of its digits is 1679616, while the sum is 53.

The square root of 394196849 is about 19854.3911767649. The cubic root of 394196849 is about 733.2257629865.

The spelling of 394196849 in words is "three hundred ninety-four million, one hundred ninety-six thousand, eight hundred forty-nine".