3887918 has 4 divisors (see below), whose sum is σ = 5831880. Its totient is φ = 1943958.

The previous prime is 3887911. The next prime is 3887959. The reversal of 3887918 is 8197883.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8197883 = 1471 ⋅5573.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3887911) 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 as a sum of consecutive naturals, namely, 971978 + ... + 971981.

It is an arithmetic number, because the mean of its divisors is an integer number (1457970).

Almost surely, 2^3887918 is an apocalyptic number.

3887918 is a deficient number, since it is larger than the sum of its proper divisors (1943962).

3887918 is a wasteful number, since it uses less digits than its factorization.

3887918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1943961.

The product of its digits is 96768, while the sum is 44.

The square root of 3887918 is about 1971.7804137378. The cubic root of 3887918 is about 157.2433781880.

The spelling of 3887918 in words is "three million, eight hundred eighty-seven thousand, nine hundred eighteen".