2623655 has 4 divisors (see below), whose sum is σ = 3148392. Its totient is φ = 2098920.

The previous prime is 2623651. The next prime is 2623657. The reversal of 2623655 is 5563262.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2623655 - 2² = 2623651 is a prime.

It is a d-powerful number, because it can be written as 2¹⁶ + 6³ + 2¹⁶ + 3¹² + 6⁵ + 5² + 5⁹ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2623651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262361 + ... + 262370.

It is an arithmetic number, because the mean of its divisors is an integer number (787098).

2^2623655 is an apocalyptic number.

2623655 is a deficient number, since it is larger than the sum of its proper divisors (524737).

2623655 is an equidigital number, since it uses as much as digits as its factorization.

2623655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524736.

The product of its digits is 10800, while the sum is 29.

The square root of 2623655 is about 1619.7700454077. The cubic root of 2623655 is about 137.9226444573.

The spelling of 2623655 in words is "two million, six hundred twenty-three thousand, six hundred fifty-five".