190728011 has 2 divisors, whose sum is σ = 190728012. Its totient is φ = 190728010.

The previous prime is 190727993. The next prime is 190728017. The reversal of 190728011 is 110827091.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 190728011 - 2²⁶ = 123619147 is a prime.

It is a super-2 number, since 2×190728011² = 72754348360032242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (190728017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95364005 + 95364006.

It is an arithmetic number, because the mean of its divisors is an integer number (95364006).

Almost surely, 2^190728011 is an apocalyptic number.

190728011 is a deficient number, since it is larger than the sum of its proper divisors (1).

190728011 is an equidigital number, since it uses as much as digits as its factorization.

190728011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 29.

The square root of 190728011 is about 13810.4312387412. The cubic root of 190728011 is about 575.6230282796.

The spelling of 190728011 in words is "one hundred ninety million, seven hundred twenty-eight thousand, eleven".