3861267 has 8 divisors (see below), whose sum is σ = 5314560. Its totient is φ = 2491080.

The previous prime is 3861259. The next prime is 3861269. The reversal of 3861267 is 7621683.

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

It is not a de Polignac number, because 3861267 - 2³ = 3861259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3861269) 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 7 ways as a sum of consecutive naturals, for example, 20667 + ... + 20852.

It is an arithmetic number, because the mean of its divisors is an integer number (664320).

Almost surely, 2^3861267 is an apocalyptic number.

3861267 is a deficient number, since it is larger than the sum of its proper divisors (1453293).

3861267 is a wasteful number, since it uses less digits than its factorization.

3861267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41553.

The product of its digits is 12096, while the sum is 33.

The square root of 3861267 is about 1965.0106869938. The cubic root of 3861267 is about 156.8832621057.

It can be divided in two parts, 386 and 1267, that added together give a triangular number (1653 = T₅₇).

The spelling of 3861267 in words is "three million, eight hundred sixty-one thousand, two hundred sixty-seven".