2649387 has 8 divisors (see below), whose sum is σ = 3804304. Its totient is φ = 1630368.

The previous prime is 2649371. The next prime is 2649391. The reversal of 2649387 is 7839462.

2649387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2649387 - 2⁴ = 2649371 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 67933 = 2649387 / (2 + 6 + 4 + 9 + 3 + 8 + 7).

It is a d-powerful number, because it can be written as 2¹⁹ + 6⁵ + 4³ + 9² + 3⁹ + 8⁷ + 7³ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2649307) 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 in 7 ways as a sum of consecutive naturals, for example, 33928 + ... + 34005.

It is an arithmetic number, because the mean of its divisors is an integer number (475538).

2^2649387 is an apocalyptic number.

2649387 is a deficient number, since it is larger than the sum of its proper divisors (1154917).

2649387 is a wasteful number, since it uses less digits than its factorization.

2649387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67949.

The product of its digits is 72576, while the sum is 39.

The square root of 2649387 is about 1627.6937672670. The cubic root of 2649387 is about 138.3720792742.

The spelling of 2649387 in words is "two million, six hundred forty-nine thousand, three hundred eighty-seven".