3866494 has 4 divisors (see below), whose sum is σ = 5799744. Its totient is φ = 1933246.

The previous prime is 3866479. The next prime is 3866543. The reversal of 3866494 is 4946683.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4946683 = 7 ⋅706669.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 966622 + ... + 966625.

It is an arithmetic number, because the mean of its divisors is an integer number (1449936).

Almost surely, 2^3866494 is an apocalyptic number.

3866494 is a deficient number, since it is larger than the sum of its proper divisors (1933250).

3866494 is a wasteful number, since it uses less digits than its factorization.

3866494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1933249.

The product of its digits is 124416, while the sum is 40.

The square root of 3866494 is about 1966.3402553983. The cubic root of 3866494 is about 156.9540211825.

The spelling of 3866494 in words is "three million, eight hundred sixty-six thousand, four hundred ninety-four".