2623705 has 12 divisors (see below), whose sum is σ = 3662820. Its totient is φ = 1798944.

The previous prime is 2623657. The next prime is 2623711. The reversal of 2623705 is 5073262.

It can be written as a sum of positive squares in 2 ways, for example, as 1882384 + 741321 = 1372^2 + 861^2 .

It is not a de Polignac number, because 2623705 - 2⁹ = 2623193 is a prime.

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 2623705.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5110 + ... + 5599.

It is an arithmetic number, because the mean of its divisors is an integer number (305235).

2^2623705 is an apocalyptic number.

It is an amenable number.

2623705 is a deficient number, since it is larger than the sum of its proper divisors (1039115).

2623705 is a wasteful number, since it uses less digits than its factorization.

2623705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10728 (or 10721 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 2623705 is about 1619.7854796238. The cubic root of 2623705 is about 137.9235206000.

Adding to 2623705 its reverse (5073262), we get a palindrome (7696967).

It can be divided in two parts, 2 and 623705, that multiplied together give a triangular number (1247410 = T₁₅₇₉).

The spelling of 2623705 in words is "two million, six hundred twenty-three thousand, seven hundred five".