3952666 has 4 divisors (see below), whose sum is σ = 5929002. Its totient is φ = 1976332.

The previous prime is 3952651. The next prime is 3952679. The reversal of 3952666 is 6662593.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2805625 + 1147041 = 1675^2 + 1071^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 988165 + ... + 988168.

Almost surely, 2^3952666 is an apocalyptic number.

3952666 is a deficient number, since it is larger than the sum of its proper divisors (1976336).

3952666 is a wasteful number, since it uses less digits than its factorization.

3952666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1976335.

The product of its digits is 58320, while the sum is 37.

The square root of 3952666 is about 1988.1312833915. The cubic root of 3952666 is about 158.1114686354. Note that the first 3 decimals are identical.

The spelling of 3952666 in words is "three million, nine hundred fifty-two thousand, six hundred sixty-six".