3876509 has 16 divisors (see below), whose sum is σ = 4892160. Its totient is φ = 2989440.

The previous prime is 3876497. The next prime is 3876539. The reversal of 3876509 is 9056783.

It is a cyclic number.

It is not a de Polignac number, because 3876509 - 2⁸ = 3876253 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3876539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3212 + ... + 4250.

It is an arithmetic number, because the mean of its divisors is an integer number (305760).

Almost surely, 2^3876509 is an apocalyptic number.

It is an amenable number.

3876509 is a deficient number, since it is larger than the sum of its proper divisors (1015651).

3876509 is a wasteful number, since it uses less digits than its factorization.

3876509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 3876509 is about 1968.8852175787. The cubic root of 3876509 is about 157.0894185474.

The spelling of 3876509 in words is "three million, eight hundred seventy-six thousand, five hundred nine".