3666057 has 4 divisors (see below), whose sum is σ = 4888080. Its totient is φ = 2444036.

The previous prime is 3666049. The next prime is 3666073. The reversal of 3666057 is 7506663.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3666057 - 2³ = 3666049 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (3666007) 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, 611007 + ... + 611012.

It is an arithmetic number, because the mean of its divisors is an integer number (1222020).

Almost surely, 2^3666057 is an apocalyptic number.

It is an amenable number.

3666057 is a deficient number, since it is larger than the sum of its proper divisors (1222023).

3666057 is a wasteful number, since it uses less digits than its factorization.

3666057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222022.

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 3666057 is about 1914.6950148783. The cubic root of 3666057 is about 154.1936199607.

Subtracting 3666057 from its reverse (7506663), we obtain a triangular number (3840606 = T₂₇₇₁).

The spelling of 3666057 in words is "three million, six hundred sixty-six thousand, fifty-seven".