3866451 has 4 divisors (see below), whose sum is σ = 5155272. Its totient is φ = 2577632.

The previous prime is 3866441. The next prime is 3866453. The reversal of 3866451 is 1546683.

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

It is a cyclic number.

It is not a de Polignac number, because 3866451 - 2⁵ = 3866419 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (3866453) 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, 644406 + ... + 644411.

It is an arithmetic number, because the mean of its divisors is an integer number (1288818).

Almost surely, 2^3866451 is an apocalyptic number.

3866451 is a deficient number, since it is larger than the sum of its proper divisors (1288821).

3866451 is a wasteful number, since it uses less digits than its factorization.

3866451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288820.

The product of its digits is 17280, while the sum is 33.

The square root of 3866451 is about 1966.3293213498. The cubic root of 3866451 is about 156.9534393420.

The spelling of 3866451 in words is "three million, eight hundred sixty-six thousand, four hundred fifty-one".