2642655 has 16 divisors (see below), whose sum is σ = 4332384. Its totient is φ = 1374720.

The previous prime is 2642639. The next prime is 2642693. The reversal of 2642655 is 5562462.

2642655 = 725² + 726² + ... + 729².

It is not a de Polignac number, because 2642655 - 2⁴ = 2642639 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1534 + ... + 2763.

It is an arithmetic number, because the mean of its divisors is an integer number (270774).

2^2642655 is an apocalyptic number.

2642655 is a deficient number, since it is larger than the sum of its proper divisors (1689729).

2642655 is a wasteful number, since it uses less digits than its factorization.

2642655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4346.

The product of its digits is 14400, while the sum is 30.

The square root of 2642655 is about 1625.6244953863. The cubic root of 2642655 is about 138.2547803241.

The spelling of 2642655 in words is "two million, six hundred forty-two thousand, six hundred fifty-five".