9000049 has 2 divisors, whose sum is σ = 9000050. Its totient is φ = 9000048.

The previous prime is 9000041. The next prime is 9000059. The reversal of 9000049 is 9400009.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9000000 + 49 = 3000^2 + 7^2 .

It is an emirp because it is prime and its reverse (9400009) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9000049 - 2³ = 9000041 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 8999993 and 9000029.

It is not a weakly prime, because it can be changed into another prime (9000041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4500024 + 4500025.

It is an arithmetic number, because the mean of its divisors is an integer number (4500025).

Almost surely, 2^9000049 is an apocalyptic number.

It is an amenable number.

9000049 is a deficient number, since it is larger than the sum of its proper divisors (1).

9000049 is an equidigital number, since it uses as much as digits as its factorization.

9000049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 9000049 is about 3000.0081666556. The cubic root of 9000049 is about 208.0087598012.

It can be divided in two parts, 90000 and 49, that multiplied together give a square (4410000 = 2100²).

The spelling of 9000049 in words is "nine million, forty-nine", and thus it is an aban number and an uban number.