2705670 has 64 divisors (see below), whose sum is σ = 7879680. Its totient is φ = 655200.

The previous prime is 2705663. The next prime is 2705687. The reversal of 2705670 is 765072.

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

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2515 + ... + 3425.

It is an arithmetic number, because the mean of its divisors is an integer number (123120).

2^2705670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2705670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3939840).

2705670 is an abundant number, since it is smaller than the sum of its proper divisors (5174010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2705670 is a wasteful number, since it uses less digits than its factorization.

2705670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938 (or 932 counting only the distinct ones).

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

The square root of 2705670 is about 1644.8920937253. The cubic root of 2705670 is about 139.3450702220.

It can be divided in two parts, 2705 and 670, that added together give a cube (3375 = 15³).

The spelling of 2705670 in words is "two million, seven hundred five thousand, six hundred seventy".