3857493 has 16 divisors (see below), whose sum is σ = 5385600. Its totient is φ = 2452800.

The previous prime is 3857489. The next prime is 3857519. The reversal of 3857493 is 3947583.

It is not a de Polignac number, because 3857493 - 2² = 3857489 is a prime.

It is a d-powerful number, because it can be written as 3 + 8⁷ + 5⁵ + 7² + 4¹⁰ + 9⁶ + 3¹¹ .

3857493 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3857443) 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 15 ways as a sum of consecutive naturals, for example, 8568 + ... + 9006.

It is an arithmetic number, because the mean of its divisors is an integer number (336600).

Almost surely, 2^3857493 is an apocalyptic number.

It is an amenable number.

3857493 is a deficient number, since it is larger than the sum of its proper divisors (1528107).

3857493 is a wasteful number, since it uses less digits than its factorization.

3857493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572.

The product of its digits is 90720, while the sum is 39.

The square root of 3857493 is about 1964.0501521092. The cubic root of 3857493 is about 156.8321329094.

The spelling of 3857493 in words is "three million, eight hundred fifty-seven thousand, four hundred ninety-three".