2649929 has 2 divisors, whose sum is σ = 2649930. Its totient is φ = 2649928.

The previous prime is 2649923. The next prime is 2649931. The reversal of 2649929 is 9299462.

2649929 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2449225 + 200704 = 1565^2 + 448^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2649929 is a prime.

Together with 2649931, it forms a pair of twin primes.

It is a Chen prime.

It is a d-powerful number, because it can be written as 2¹³ + 6 + 4² + 9⁴ + 9⁴ + 2²¹ + 9⁶ .

It is not a weakly prime, because it can be changed into another prime (2649923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1324964 + 1324965.

It is an arithmetic number, because the mean of its divisors is an integer number (1324965).

2^2649929 is an apocalyptic number.

It is an amenable number.

2649929 is a deficient number, since it is larger than the sum of its proper divisors (1).

2649929 is an equidigital number, since it uses as much as digits as its factorization.

2649929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 41.

The square root of 2649929 is about 1627.8602519873. The cubic root of 2649929 is about 138.3815144823.

The spelling of 2649929 in words is "two million, six hundred forty-nine thousand, nine hundred twenty-nine".