2649899 has 16 divisors (see below), whose sum is σ = 3210240. Its totient is φ = 2138400.

The previous prime is 2649893. The next prime is 2649923. The reversal of 2649899 is 9989462.

2649899 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2649899 is a prime.

It is a Duffinian number.

2649899 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (2649893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17474 + ... + 17624.

It is an arithmetic number, because the mean of its divisors is an integer number (200640).

2^2649899 is an apocalyptic number.

2649899 is a deficient number, since it is larger than the sum of its proper divisors (560341).

2649899 is a wasteful number, since it uses less digits than its factorization.

2649899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290.

The product of its digits is 279936, while the sum is 47.

The square root of 2649899 is about 1627.8510374110. The cubic root of 2649899 is about 138.3809922719.

The spelling of 2649899 in words is "two million, six hundred forty-nine thousand, eight hundred ninety-nine".