2029649 has 2 divisors, whose sum is σ = 2029650. Its totient is φ = 2029648.

The previous prime is 2029633. The next prime is 2029661. The reversal of 2029649 is 9469202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1281424 + 748225 = 1132^2 + 865^2 .

It is a cyclic number.

It is not a de Polignac number, because 2029649 - 2⁴ = 2029633 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2029669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1014824 + 1014825.

It is an arithmetic number, because the mean of its divisors is an integer number (1014825).

2^2029649 is an apocalyptic number.

It is an amenable number.

2029649 is a deficient number, since it is larger than the sum of its proper divisors (1).

2029649 is an equidigital number, since it uses as much as digits as its factorization.

2029649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 2029649 is about 1424.6575027002. The cubic root of 2029649 is about 126.6116435379.

The spelling of 2029649 in words is "two million, twenty-nine thousand, six hundred forty-nine".