990480277 has 2 divisors, whose sum is σ = 990480278. Its totient is φ = 990480276.

The previous prime is 990480263. The next prime is 990480301. The reversal of 990480277 is 772084099.

990480277 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 805764996 + 184715281 = 28386^2 + 13591^2 .

It is a cyclic number.

It is not a de Polignac number, because 990480277 - 2²⁷ = 856262549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (990480217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495240138 + 495240139.

It is an arithmetic number, because the mean of its divisors is an integer number (495240139).

Almost surely, 2^990480277 is an apocalyptic number.

It is an amenable number.

990480277 is a deficient number, since it is larger than the sum of its proper divisors (1).

990480277 is an equidigital number, since it uses as much as digits as its factorization.

990480277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 990480277 is about 31471.8966222247. The cubic root of 990480277 is about 996.8166359465.

The spelling of 990480277 in words is "nine hundred ninety million, four hundred eighty thousand, two hundred seventy-seven".