3666953 has 4 divisors (see below), whose sum is σ = 3670800. Its totient is φ = 3663108.

The previous prime is 3666947. The next prime is 3666961. The reversal of 3666953 is 3596663.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3666953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3666253) 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, 698 + ... + 2796.

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

Almost surely, 2^3666953 is an apocalyptic number.

It is an amenable number.

3666953 is a deficient number, since it is larger than the sum of its proper divisors (3847).

3666953 is a wasteful number, since it uses less digits than its factorization.

3666953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3846.

The product of its digits is 87480, while the sum is 38.

The square root of 3666953 is about 1914.9289804063. The cubic root of 3666953 is about 154.2061807974.

The spelling of 3666953 in words is "three million, six hundred sixty-six thousand, nine hundred fifty-three".