3666801 has 4 divisors (see below), whose sum is σ = 4889072. Its totient is φ = 2444532.

The previous prime is 3666797. The next prime is 3666809. The reversal of 3666801 is 1086663.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1086663 = 3 ⋅362221.

It is not a de Polignac number, because 3666801 - 2² = 3666797 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3666809) 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, 611131 + ... + 611136.

It is an arithmetic number, because the mean of its divisors is an integer number (1222268).

Almost surely, 2^3666801 is an apocalyptic number.

It is an amenable number.

3666801 is a deficient number, since it is larger than the sum of its proper divisors (1222271).

3666801 is a wasteful number, since it uses less digits than its factorization.

3666801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222270.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 3666801 is about 1914.8892918391. The cubic root of 3666801 is about 154.2040500853.

The spelling of 3666801 in words is "three million, six hundred sixty-six thousand, eight hundred one".