2649000397 has 2 divisors, whose sum is σ = 2649000398. Its totient is φ = 2649000396.

The previous prime is 2649000383. The next prime is 2649000433. The reversal of 2649000397 is 7930009462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1345862596 + 1303137801 = 36686^2 + 36099^2 .

It is a cyclic number.

It is not a de Polignac number, because 2649000397 - 2⁷ = 2649000269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2649000797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1324500198 + 1324500199.

It is an arithmetic number, because the mean of its divisors is an integer number (1324500199).

Almost surely, 2^2649000397 is an apocalyptic number.

It is an amenable number.

2649000397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2649000397 is an equidigital number, since it uses as much as digits as its factorization.

2649000397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 2649000397 is about 51468.4407865636. The cubic root of 2649000397 is about 1383.6534845138.

The spelling of 2649000397 in words is "two billion, six hundred forty-nine million, three hundred ninety-seven", and thus it is an aban number.