2947650289 has 2 divisors, whose sum is σ = 2947650290. Its totient is φ = 2947650288.

The previous prime is 2947650239. The next prime is 2947650319. The reversal of 2947650289 is 9820567492.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2820141025 + 127509264 = 53105^2 + 11292^2 .

It is a cyclic number.

It is not a de Polignac number, because 2947650289 - 2¹³ = 2947642097 is a prime.

It is not a weakly prime, because it can be changed into another prime (2947650229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1473825144 + 1473825145.

It is an arithmetic number, because the mean of its divisors is an integer number (1473825145).

Almost surely, 2^2947650289 is an apocalyptic number.

It is an amenable number.

2947650289 is a deficient number, since it is larger than the sum of its proper divisors (1).

2947650289 is an equidigital number, since it uses as much as digits as its factorization.

2947650289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The square root of 2947650289 is about 54292.2673039172. The cubic root of 2947650289 is about 1433.8112570250.

The spelling of 2947650289 in words is "two billion, nine hundred forty-seven million, six hundred fifty thousand, two hundred eighty-nine".