194880823 has 4 divisors (see below), whose sum is σ = 197789560. Its totient is φ = 191972088.

The previous prime is 194880821. The next prime is 194880827. The reversal of 194880823 is 328088491.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 194880823 - 2¹ = 194880821 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 194880823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194880821) 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, 1454268 + ... + 1454401.

It is an arithmetic number, because the mean of its divisors is an integer number (49447390).

Almost surely, 2^194880823 is an apocalyptic number.

194880823 is a deficient number, since it is larger than the sum of its proper divisors (2908737).

194880823 is an equidigital number, since it uses as much as digits as its factorization.

194880823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2908736.

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 194880823 is about 13959.9721704594. The cubic root of 194880823 is about 579.7708399099.

The spelling of 194880823 in words is "one hundred ninety-four million, eight hundred eighty thousand, eight hundred twenty-three".