3670666 has 4 divisors (see below), whose sum is σ = 5506002. Its totient is φ = 1835332.

The previous prime is 3670661. The next prime is 3670669. The reversal of 3670666 is 6660763.

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

It can be written as a sum of positive squares in only one way, i.e., 2313441 + 1357225 = 1521^2 + 1165^2 .

It is a super-3 number, since 3×3670666³ (a number of 21 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (3670661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 917665 + ... + 917668.

Almost surely, 2^3670666 is an apocalyptic number.

3670666 is a deficient number, since it is larger than the sum of its proper divisors (1835336).

3670666 is a wasteful number, since it uses less digits than its factorization.

3670666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1835335.

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 3670666 is about 1915.8982227665. The cubic root of 3670666 is about 154.2582107712.

The spelling of 3670666 in words is "three million, six hundred seventy thousand, six hundred sixty-six".