3856249 has 4 divisors (see below), whose sum is σ = 4023936. Its totient is φ = 3688564.

The previous prime is 3856243. The next prime is 3856253. The reversal of 3856249 is 9426583.

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.

It is a cyclic number.

It is not a de Polignac number, because 3856249 - 2¹³ = 3848057 is a prime.

It is a d-powerful number, because it can be written as 3⁵ + 8 + 5⁷ + 6⁸ + 2²¹ + 4⁵ + 9² .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3856243) 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, 83809 + ... + 83854.

It is an arithmetic number, because the mean of its divisors is an integer number (1005984).

Almost surely, 2^3856249 is an apocalyptic number.

It is an amenable number.

3856249 is a deficient number, since it is larger than the sum of its proper divisors (167687).

3856249 is a wasteful number, since it uses less digits than its factorization.

3856249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167686.

The product of its digits is 51840, while the sum is 37.

The square root of 3856249 is about 1963.7334340485. The cubic root of 3856249 is about 156.8152722048.

The spelling of 3856249 in words is "three million, eight hundred fifty-six thousand, two hundred forty-nine".