7066705 has 4 divisors (see below), whose sum is σ = 8480052. Its totient is φ = 5653360.

The previous prime is 7066699. The next prime is 7066721. The reversal of 7066705 is 5076607.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2331729 + 4734976 = 1527^2 + 2176^2 .

It is a de Polignac number, because none of the positive numbers 2^k-7066705 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 706666 + ... + 706675.

It is an arithmetic number, because the mean of its divisors is an integer number (2120013).

Almost surely, 2^7066705 is an apocalyptic number.

It is an amenable number.

7066705 is a deficient number, since it is larger than the sum of its proper divisors (1413347).

7066705 is a wasteful number, since it uses less digits than its factorization.

7066705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1413346.

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 7066705 is about 2658.3274817072. The cubic root of 7066705 is about 191.8988272673.

The spelling of 7066705 in words is "seven million, sixty-six thousand, seven hundred five".