7020666 has 24 divisors (see below), whose sum is σ = 15372084. Its totient is φ = 2315520.

The previous prime is 7020649. The next prime is 7020667. The reversal of 7020666 is 6660207.

It can be written as a sum of positive squares in 2 ways, for example, as 6426225 + 594441 = 2535^2 + 771^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7020667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 265 + ... + 3756.

Almost surely, 2^7020666 is an apocalyptic number.

7020666 is an abundant number, since it is smaller than the sum of its proper divisors (8351418).

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

7020666 is a wasteful number, since it uses less digits than its factorization.

7020666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4126 (or 4123 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 7020666 is about 2649.6539396683. The cubic root of 7020666 is about 191.4811839707.

It can be divided in two parts, 70 and 20666, that added together give a 4-th power (20736 = 12⁴).

The spelling of 7020666 in words is "seven million, twenty thousand, six hundred sixty-six".