190428347 has 2 divisors, whose sum is σ = 190428348. Its totient is φ = 190428346.

The previous prime is 190428331. The next prime is 190428353. The reversal of 190428347 is 743824091.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 190428347 - 2⁴ = 190428331 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 190428347.

It is not a weakly prime, because it can be changed into another prime (190428367) 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 as a sum of consecutive naturals, namely, 95214173 + 95214174.

It is an arithmetic number, because the mean of its divisors is an integer number (95214174).

Almost surely, 2^190428347 is an apocalyptic number.

190428347 is a deficient number, since it is larger than the sum of its proper divisors (1).

190428347 is an equidigital number, since it uses as much as digits as its factorization.

190428347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 190428347 is about 13799.5777833961. The cubic root of 190428347 is about 575.3214051892.

The spelling of 190428347 in words is "one hundred ninety million, four hundred twenty-eight thousand, three hundred forty-seven".