3874666 has 4 divisors (see below), whose sum is σ = 5812002. Its totient is φ = 1937332.

The previous prime is 3874639. The next prime is 3874669. The reversal of 3874666 is 6664783.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6664783 = 31 ⋅214993.

It can be written as a sum of positive squares in only one way, i.e., 2653641 + 1221025 = 1629^2 + 1105^2 .

It is a super-2 number, since 2×3874666² = 30026073223112, which contains 22 as substring.

It is a d-powerful number, because it can be written as 3 + 8⁷ + 7⁵ + 4⁸ + 6⁵ + 6⁵ + 6⁸ .

It is not an unprimeable number, because it can be changed into a prime (3874669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 968665 + ... + 968668.

Almost surely, 2^3874666 is an apocalyptic number.

3874666 is a deficient number, since it is larger than the sum of its proper divisors (1937336).

3874666 is a wasteful number, since it uses less digits than its factorization.

3874666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1937335.

The product of its digits is 145152, while the sum is 40.

The square root of 3874666 is about 1968.4171305900. The cubic root of 3874666 is about 157.0645197108.

The spelling of 3874666 in words is "three million, eight hundred seventy-four thousand, six hundred sixty-six".