194394377 has 4 divisors (see below), whose sum is σ = 204625680. Its totient is φ = 184163076.

The previous prime is 194394353. The next prime is 194394433. The reversal of 194394377 is 773493491.

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 194394377 - 2⁶ = 194394313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194394307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5115623 + ... + 5115660.

It is an arithmetic number, because the mean of its divisors is an integer number (51156420).

Almost surely, 2^194394377 is an apocalyptic number.

It is an amenable number.

194394377 is a deficient number, since it is larger than the sum of its proper divisors (10231303).

194394377 is a wasteful number, since it uses less digits than its factorization.

194394377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10231302.

The product of its digits is 571536, while the sum is 47.

The square root of 194394377 is about 13942.5383987278. The cubic root of 194394377 is about 579.2880453733.

The spelling of 194394377 in words is "one hundred ninety-four million, three hundred ninety-four thousand, three hundred seventy-seven".