2620755 has 28 divisors (see below), whose sum is σ = 4721760. Its totient is φ = 1395792.

The previous prime is 2620741. The next prime is 2620811. The reversal of 2620755 is 5570262.

It is not a de Polignac number, because 2620755 - 2¹² = 2616659 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 3286 + ... + 4004.

2^2620755 is an apocalyptic number.

2620755 is a deficient number, since it is larger than the sum of its proper divisors (2101005).

2620755 is an frugal number, since it uses more digits than its factorization.

2620755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742 (or 727 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 2620755 is about 1618.8746091035. The cubic root of 2620755 is about 137.8718091242.

It can be divided in two parts, 26207 and 55, that added together give a palindrome (26262).

The spelling of 2620755 in words is "two million, six hundred twenty thousand, seven hundred fifty-five".