7006669 has 4 divisors (see below), whose sum is σ = 7418844. Its totient is φ = 6594496.

The previous prime is 7006667. The next prime is 7006679. The reversal of 7006669 is 9666007.

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 5929225 + 1077444 = 2435^2 + 1038^2 .

It is a cyclic number.

It is not a de Polignac number, because 7006669 - 2¹ = 7006667 is a prime.

It is a super-2 number, since 2×7006669² = 98186820951122, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7006667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206062 + ... + 206095.

It is an arithmetic number, because the mean of its divisors is an integer number (1854711).

Almost surely, 2^7006669 is an apocalyptic number.

It is an amenable number.

7006669 is a deficient number, since it is larger than the sum of its proper divisors (412175).

7006669 is a wasteful number, since it uses less digits than its factorization.

7006669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412174.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 7006669 is about 2647.0113335609. The cubic root of 7006669 is about 191.3538482241.

The spelling of 7006669 in words is "seven million, six thousand, six hundred sixty-nine".