190506847 has 2 divisors, whose sum is σ = 190506848. Its totient is φ = 190506846.

The previous prime is 190506809. The next prime is 190506853. The reversal of 190506847 is 748605091.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190506847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190506047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95253423 + 95253424.

It is an arithmetic number, because the mean of its divisors is an integer number (95253424).

Almost surely, 2^190506847 is an apocalyptic number.

190506847 is a deficient number, since it is larger than the sum of its proper divisors (1).

190506847 is an equidigital number, since it uses as much as digits as its factorization.

190506847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 190506847 is about 13802.4217802529. The cubic root of 190506847 is about 575.4004489637.

The spelling of 190506847 in words is "one hundred ninety million, five hundred six thousand, eight hundred forty-seven".