3666779 has 4 divisors (see below), whose sum is σ = 3670800. Its totient is φ = 3662760.

The previous prime is 3666757. The next prime is 3666787. The reversal of 3666779 is 9776663.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3666779 - 2¹² = 3662683 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (3666979) 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, 89 + ... + 2709.

It is an arithmetic number, because the mean of its divisors is an integer number (917700).

Almost surely, 2^3666779 is an apocalyptic number.

3666779 is a deficient number, since it is larger than the sum of its proper divisors (4021).

3666779 is a wasteful number, since it uses less digits than its factorization.

3666779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4020.

The product of its digits is 285768, while the sum is 44.

The square root of 3666779 is about 1914.8835473731. The cubic root of 3666779 is about 154.2037416879.

The spelling of 3666779 in words is "three million, six hundred sixty-six thousand, seven hundred seventy-nine".