2649893 has 2 divisors, whose sum is σ = 2649894. Its totient is φ = 2649892.

The previous prime is 2649887. The next prime is 2649923. The reversal of 2649893 is 3989462.

It is a happy number.

2649893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1532644 + 1117249 = 1238^2 + 1057^2 .

It is a cyclic number.

It is not a de Polignac number, because 2649893 - 2⁴ = 2649877 is a prime.

It is a super-2 number, since 2×2649893² = 14043865822898, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2¹⁹ + 6⁵ + 4⁴ + 9 + 8⁷ + 9³ + 3⁹ .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2649893.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2649863) 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, 1324946 + 1324947.

It is an arithmetic number, because the mean of its divisors is an integer number (1324947).

2^2649893 is an apocalyptic number.

It is an amenable number.

2649893 is a deficient number, since it is larger than the sum of its proper divisors (1).

2649893 is an equidigital number, since it uses as much as digits as its factorization.

2649893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 41.

The square root of 2649893 is about 1627.8491944895. The cubic root of 2649893 is about 138.3808878294.

The spelling of 2649893 in words is "two million, six hundred forty-nine thousand, eight hundred ninety-three".