2670655 has 16 divisors (see below), whose sum is σ = 3485664. Its totient is φ = 1952640.

The previous prime is 2670653. The next prime is 2670667. The reversal of 2670655 is 5560762.

It is not a de Polignac number, because 2670655 - 2¹ = 2670653 is a prime.

It is an Ulam number.

2670655 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2670653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11652 + ... + 11878.

It is an arithmetic number, because the mean of its divisors is an integer number (217854).

2^2670655 is an apocalyptic number.

2670655 is a deficient number, since it is larger than the sum of its proper divisors (815009).

2670655 is a wasteful number, since it uses less digits than its factorization.

2670655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 2670655 is about 1634.2138782913. The cubic root of 2670655 is about 138.7413543297.

The spelling of 2670655 in words is "two million, six hundred seventy thousand, six hundred fifty-five".