3861693 has 24 divisors (see below), whose sum is σ = 6408480. Its totient is φ = 2216160.

The previous prime is 3861659. The next prime is 3861709. The reversal of 3861693 is 3961683.

It is a happy number.

3861693 is a `hidden beast` number, since 38 + 616 + 9 + 3 = 666.

It is not a de Polignac number, because 3861693 - 2¹³ = 3853501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3861293) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 855 + ... + 2907.

It is an arithmetic number, because the mean of its divisors is an integer number (267020).

Almost surely, 2^3861693 is an apocalyptic number.

3861693 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

3861693 is a deficient number, since it is larger than the sum of its proper divisors (2546787).

3861693 is a wasteful number, since it uses less digits than its factorization.

3861693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2089 (or 2086 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 3861693 is about 1965.1190803613. The cubic root of 3861693 is about 156.8890313529.

It can be divided in two parts, 3861 and 693, that added together give a palindrome (4554).

The spelling of 3861693 in words is "three million, eight hundred sixty-one thousand, six hundred ninety-three".