2623605 has 8 divisors (see below), whose sum is σ = 4197792. Its totient is φ = 1399248.

The previous prime is 2623597. The next prime is 2623639. The reversal of 2623605 is 5063262.

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

It is not a de Polignac number, because 2623605 - 2³ = 2623597 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87439 + ... + 87468.

It is an arithmetic number, because the mean of its divisors is an integer number (524724).

2^2623605 is an apocalyptic number.

It is an amenable number.

2623605 is a deficient number, since it is larger than the sum of its proper divisors (1574187).

2623605 is a wasteful number, since it uses less digits than its factorization.

2623605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174915.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 2623605 is about 1619.7546110445. The cubic root of 2623605 is about 137.9217683035.

Adding to 2623605 its reverse (5063262), we get a palindrome (7686867).

The spelling of 2623605 in words is "two million, six hundred twenty-three thousand, six hundred five".