3857393 has 8 divisors (see below), whose sum is σ = 3988008. Its totient is φ = 3729024.

The previous prime is 3857383. The next prime is 3857417. The reversal of 3857393 is 3937583.

It can be written as a sum of positive squares in 4 ways, for example, as 1763584 + 2093809 = 1328^2 + 1447^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3857393 - 2⁸ = 3857137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3857383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3371 + ... + 4367.

It is an arithmetic number, because the mean of its divisors is an integer number (498501).

Almost surely, 2^3857393 is an apocalyptic number.

It is an amenable number.

3857393 is a deficient number, since it is larger than the sum of its proper divisors (130615).

3857393 is an equidigital number, since it uses as much as digits as its factorization.

3857393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123.

The product of its digits is 68040, while the sum is 38.

The square root of 3857393 is about 1964.0246943458. The cubic root of 3857393 is about 156.8307776813.

The spelling of 3857393 in words is "three million, eight hundred fifty-seven thousand, three hundred ninety-three".