3866290 has 8 divisors (see below), whose sum is σ = 6959340. Its totient is φ = 1546512.

The previous prime is 3866287. The next prime is 3866333. The reversal of 3866290 is 926683.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3651921 + 214369 = 1911^2 + 463^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193305 + ... + 193324.

Almost surely, 2^3866290 is an apocalyptic number.

3866290 is a deficient number, since it is larger than the sum of its proper divisors (3093050).

3866290 is a wasteful number, since it uses less digits than its factorization.

3866290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386636.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 3866290 is about 1966.2883816979. The cubic root of 3866290 is about 156.9512607848.

The spelling of 3866290 in words is "three million, eight hundred sixty-six thousand, two hundred ninety".