290116777 has 2 divisors, whose sum is σ = 290116778. Its totient is φ = 290116776.

The previous prime is 290116711. The next prime is 290116807. The reversal of 290116777 is 777611092.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 273273961 + 16842816 = 16531^2 + 4104^2 .

It is a cyclic number.

It is not a de Polignac number, because 290116777 - 2¹⁵ = 290084009 is a prime.

It is not a weakly prime, because it can be changed into another prime (290116877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145058388 + 145058389.

It is an arithmetic number, because the mean of its divisors is an integer number (145058389).

Almost surely, 2^290116777 is an apocalyptic number.

It is an amenable number.

290116777 is a deficient number, since it is larger than the sum of its proper divisors (1).

290116777 is an equidigital number, since it uses as much as digits as its factorization.

290116777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37044, while the sum is 40.

The square root of 290116777 is about 17032.8147116089. The cubic root of 290116777 is about 661.9994287804. Note that the first 3 decimals are identical.

The spelling of 290116777 in words is "two hundred ninety million, one hundred sixteen thousand, seven hundred seventy-seven".