5670666 has 12 divisors (see below), whose sum is σ = 12286482. Its totient is φ = 1890216.

The previous prime is 5670661. The next prime is 5670671. The reversal of 5670666 is 6660765.

It is an interprime number because it is at equal distance from previous prime (5670661) and next prime (5670671).

It can be written as a sum of positive squares in only one way, i.e., 5659641 + 11025 = 2379^2 + 105^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5670666.

It is not an unprimeable number, because it can be changed into a prime (5670661) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 157501 + ... + 157536.

Almost surely, 2^5670666 is an apocalyptic number.

5670666 is an abundant number, since it is smaller than the sum of its proper divisors (6615816).

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

5670666 is a wasteful number, since it uses less digits than its factorization.

5670666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315045 (or 315042 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 5670666 is about 2381.3160227068. The cubic root of 5670666 is about 178.3246400591.

Subtracting 5670666 from its reverse (6660765), we obtain a palindrome (990099).

It can be divided in two parts, 5670 and 666, that added together give a palindrome (6336).

The spelling of 5670666 in words is "five million, six hundred seventy thousand, six hundred sixty-six".