195733397 has 2 divisors, whose sum is σ = 195733398. Its totient is φ = 195733396.

The previous prime is 195733387. The next prime is 195733423. The reversal of 195733397 is 793337591.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111809476 + 83923921 = 10574^2 + 9161^2 .

It is a cyclic number.

It is not a de Polignac number, because 195733397 - 2²² = 191539093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195733357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97866698 + 97866699.

It is an arithmetic number, because the mean of its divisors is an integer number (97866699).

Almost surely, 2^195733397 is an apocalyptic number.

It is an amenable number.

195733397 is a deficient number, since it is larger than the sum of its proper divisors (1).

195733397 is an equidigital number, since it uses as much as digits as its factorization.

195733397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 535815, while the sum is 47.

The square root of 195733397 is about 13990.4752242374. The cubic root of 195733397 is about 580.6150797514.

The spelling of 195733397 in words is "one hundred ninety-five million, seven hundred thirty-three thousand, three hundred ninety-seven".