2072705 has 8 divisors (see below), whose sum is σ = 2498472. Its totient is φ = 1650688.

The previous prime is 2072701. The next prime is 2072731. The reversal of 2072705 is 5072702.

It can be written as a sum of positive squares in 4 ways, for example, as 891136 + 1181569 = 944^2 + 1087^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2072705 - 2² = 2072701 is a prime.

It is a super-2 number, since 2×2072705² = 8592212034050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2072701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 479 + ... + 2091.

It is an arithmetic number, because the mean of its divisors is an integer number (312309).

2^2072705 is an apocalyptic number.

It is an amenable number.

2072705 is a deficient number, since it is larger than the sum of its proper divisors (425767).

2072705 is a wasteful number, since it uses less digits than its factorization.

2072705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1875.

The product of its (nonzero) digits is 980, while the sum is 23.

The square root of 2072705 is about 1439.6892025712. The cubic root of 2072705 is about 127.5006792223.

The spelling of 2072705 in words is "two million, seventy-two thousand, seven hundred five".