3857399 has 32 divisors (see below), whose sum is σ = 5268480. Its totient is φ = 2737152.

The previous prime is 3857383. The next prime is 3857417. The reversal of 3857399 is 9937583.

It is a cyclic number.

It is not a de Polignac number, because 3857399 - 2⁴ = 3857383 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3857309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39719 + ... + 39815.

It is an arithmetic number, because the mean of its divisors is an integer number (164640).

Almost surely, 2^3857399 is an apocalyptic number.

3857399 is a deficient number, since it is larger than the sum of its proper divisors (1411081).

3857399 is a wasteful number, since it uses less digits than its factorization.

3857399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159.

The product of its digits is 204120, while the sum is 44.

The square root of 3857399 is about 1964.0262218209. The cubic root of 3857399 is about 156.8308589956.

The spelling of 3857399 in words is "three million, eight hundred fifty-seven thousand, three hundred ninety-nine".