3887977 has 4 divisors (see below), whose sum is σ = 3895380. Its totient is φ = 3880576.

The previous prime is 3887971. The next prime is 3887993. The reversal of 3887977 is 7797883.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 561001 + 3326976 = 749^2 + 1824^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3887977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3887977.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3887971) 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 3 ways as a sum of consecutive naturals, for example, 2848 + ... + 3985.

It is an arithmetic number, because the mean of its divisors is an integer number (973845).

Almost surely, 2^3887977 is an apocalyptic number.

It is an amenable number.

3887977 is a deficient number, since it is larger than the sum of its proper divisors (7403).

3887977 is an equidigital number, since it uses as much as digits as its factorization.

3887977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7402.

The product of its digits is 592704, while the sum is 49.

The square root of 3887977 is about 1971.7953747790. The cubic root of 3887977 is about 157.2441735848.

The spelling of 3887977 in words is "three million, eight hundred eighty-seven thousand, nine hundred seventy-seven".