3857020 has 24 divisors (see below), whose sum is σ = 8362368. Its totient is φ = 1492800.

The previous prime is 3857003. The next prime is 3857023. The reversal of 3857020 is 207583.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3857023) 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, 2491 + ... + 3730.

It is an arithmetic number, because the mean of its divisors is an integer number (348432).

Almost surely, 2^3857020 is an apocalyptic number.

It is an amenable number.

3857020 is an abundant number, since it is smaller than the sum of its proper divisors (4505348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3857020 is a wasteful number, since it uses less digits than its factorization.

3857020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6261 (or 6259 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 3857020 is about 1963.9297339773. The cubic root of 3857020 is about 156.8257224738.

The spelling of 3857020 in words is "three million, eight hundred fifty-seven thousand, twenty".