190768907 has 6 divisors (see below), whose sum is σ = 221914908. Its totient is φ = 163516164.

The previous prime is 190768867. The next prime is 190768927. The reversal of 190768907 is 709867091.

It is not a de Polignac number, because 190768907 - 2¹⁰ = 190767883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190768927) 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 5 ways as a sum of consecutive naturals, for example, 1946573 + ... + 1946670.

It is an arithmetic number, because the mean of its divisors is an integer number (36985818).

Almost surely, 2^190768907 is an apocalyptic number.

190768907 is a deficient number, since it is larger than the sum of its proper divisors (31146001).

190768907 is an equidigital number, since it uses as much as digits as its factorization.

190768907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3893257 (or 3893250 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 47.

The square root of 190768907 is about 13811.9117793302. The cubic root of 190768907 is about 575.6641671365.

The spelling of 190768907 in words is "one hundred ninety million, seven hundred sixty-eight thousand, nine hundred seven".