3861357 has 16 divisors (see below), whose sum is σ = 5417280. Its totient is φ = 2443392.

The previous prime is 3861349. The next prime is 3861383. The reversal of 3861357 is 7531683.

It is a happy number.

It is not a de Polignac number, because 3861357 - 2³ = 3861349 is a prime.

3861357 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3861317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4369 + ... + 5177.

It is an arithmetic number, because the mean of its divisors is an integer number (338580).

Almost surely, 2^3861357 is an apocalyptic number.

3861357 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

3861357 is a deficient number, since it is larger than the sum of its proper divisors (1555923).

3861357 is a wasteful number, since it uses less digits than its factorization.

3861357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892.

The product of its digits is 15120, while the sum is 33.

The square root of 3861357 is about 1965.0335874992. The cubic root of 3861357 is about 156.8844809961.

The spelling of 3861357 in words is "three million, eight hundred sixty-one thousand, three hundred fifty-seven".