3857478 has 16 divisors (see below), whose sum is σ = 7879680. Its totient is φ = 1258376.

The previous prime is 3857473. The next prime is 3857489. The reversal of 3857478 is 8747583.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3857473) 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, 6558 + ... + 7121.

It is an arithmetic number, because the mean of its divisors is an integer number (492480).

Almost surely, 2^3857478 is an apocalyptic number.

3857478 is an abundant number, since it is smaller than the sum of its proper divisors (4022202).

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

3857478 is a wasteful number, since it uses less digits than its factorization.

3857478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13731.

The product of its digits is 188160, while the sum is 42.

The square root of 3857478 is about 1964.0463334657. The cubic root of 3857478 is about 156.8319296267.

The spelling of 3857478 in words is "three million, eight hundred fifty-seven thousand, four hundred seventy-eight".