196770823 has 2 divisors, whose sum is σ = 196770824. Its totient is φ = 196770822.

The previous prime is 196770809. The next prime is 196770853. The reversal of 196770823 is 328077691.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196770823 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 196770823.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196770803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98385411 + 98385412.

It is an arithmetic number, because the mean of its divisors is an integer number (98385412).

Almost surely, 2^196770823 is an apocalyptic number.

196770823 is a deficient number, since it is larger than the sum of its proper divisors (1).

196770823 is an equidigital number, since it uses as much as digits as its factorization.

196770823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 43.

The square root of 196770823 is about 14027.5023792548. The cubic root of 196770823 is about 581.6390646348.

The spelling of 196770823 in words is "one hundred ninety-six million, seven hundred seventy thousand, eight hundred twenty-three".