2640603 has 8 divisors (see below), whose sum is σ = 4023808. Its totient is φ = 1508904.

The previous prime is 2640581. The next prime is 2640643. The reversal of 2640603 is 3060462.

2640603 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 2640603 - 2⁵ = 2640571 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 125743 = 2640603 / (2 + 6 + 4 + 0 + 6 + 0 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2640603.

It is not an unprimeable number, because it can be changed into a prime (2640643) 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, 62851 + ... + 62892.

It is an arithmetic number, because the mean of its divisors is an integer number (502976).

2^2640603 is an apocalyptic number.

2640603 is a deficient number, since it is larger than the sum of its proper divisors (1383205).

2640603 is a wasteful number, since it uses less digits than its factorization.

2640603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125753.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 2640603 is about 1624.9932307551. The cubic root of 2640603 is about 138.2189864891.

The spelling of 2640603 in words is "two million, six hundred forty thousand, six hundred three".