3966461 has 4 divisors (see below), whose sum is σ = 3988800. Its totient is φ = 3944124.

The previous prime is 3966439. The next prime is 3966503. The reversal of 3966461 is 1646693.

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: 1646693 = 313 ⋅5261.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3966461 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3966161) 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, 10901 + ... + 11258.

It is an arithmetic number, because the mean of its divisors is an integer number (997200).

Almost surely, 2^3966461 is an apocalyptic number.

It is an amenable number.

3966461 is a deficient number, since it is larger than the sum of its proper divisors (22339).

3966461 is a wasteful number, since it uses less digits than its factorization.

3966461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22338.

The product of its digits is 23328, while the sum is 35.

The square root of 3966461 is about 1991.5975999182. The cubic root of 3966461 is about 158.2951940147.

The spelling of 3966461 in words is "three million, nine hundred sixty-six thousand, four hundred sixty-one".