194792947 has 4 divisors (see below), whose sum is σ = 197986336. Its totient is φ = 191599560.

The previous prime is 194792929. The next prime is 194792951. The reversal of 194792947 is 749297491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 749297491 = 17 ⋅44076323.

It is a cyclic number.

It is not a de Polignac number, because 194792947 - 2¹¹ = 194790899 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 194792894 and 194792903.

It is not an unprimeable number, because it can be changed into a prime (194702947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1596603 + ... + 1596724.

It is an arithmetic number, because the mean of its divisors is an integer number (49496584).

Almost surely, 2^194792947 is an apocalyptic number.

194792947 is a deficient number, since it is larger than the sum of its proper divisors (3193389).

194792947 is an equidigital number, since it uses as much as digits as its factorization.

194792947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3193388.

The product of its digits is 1143072, while the sum is 52.

The square root of 194792947 is about 13956.8243880906. The cubic root of 194792947 is about 579.6836830494.

The spelling of 194792947 in words is "one hundred ninety-four million, seven hundred ninety-two thousand, nine hundred forty-seven".