3887478 has 24 divisors (see below), whose sum is σ = 9626448. Its totient is φ = 1110672.

The previous prime is 3887473. The next prime is 3887489. The reversal of 3887478 is 8747883.

It is a super-2 number, since 2×3887478² = 30224970400968, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3887473) 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 11 ways as a sum of consecutive naturals, for example, 15301 + ... + 15552.

It is an arithmetic number, because the mean of its divisors is an integer number (401102).

Almost surely, 2^3887478 is an apocalyptic number.

3887478 is an abundant number, since it is smaller than the sum of its proper divisors (5738970).

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

3887478 is a wasteful number, since it uses less digits than its factorization.

3887478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30868 (or 30865 counting only the distinct ones).

The product of its digits is 301056, while the sum is 45.

The square root of 3887478 is about 1971.6688362907. The cubic root of 3887478 is about 157.2374461616.

The spelling of 3887478 in words is "three million, eight hundred eighty-seven thousand, four hundred seventy-eight".