2670705 has 32 divisors (see below), whose sum is σ = 4830720. Its totient is φ = 1399680.

The previous prime is 2670677. The next prime is 2670709. The reversal of 2670705 is 5070762.

It is not a de Polignac number, because 2670705 - 2⁵ = 2670673 is a prime.

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

2670705 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2670709) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9720 + ... + 9990.

It is an arithmetic number, because the mean of its divisors is an integer number (150960).

2^2670705 is an apocalyptic number.

It is an amenable number.

2670705 is a deficient number, since it is larger than the sum of its proper divisors (2160015).

2670705 is a wasteful number, since it uses less digits than its factorization.

2670705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358 (or 352 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 2670705 is about 1634.2291760950. The cubic root of 2670705 is about 138.7422201628.

It can be divided in two parts, 2670 and 705, that added together give a cube (3375 = 15³).

The spelling of 2670705 in words is "two million, six hundred seventy thousand, seven hundred five".