2977987 has 4 divisors (see below), whose sum is σ = 2981440. Its totient is φ = 2974536.

The previous prime is 2977979. The next prime is 2977991. The reversal of 2977987 is 7897792.

2977987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2977987 - 2³ = 2977979 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 2977987.

It is not an unprimeable number, because it can be changed into a prime (2977937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 814 + ... + 2572.

It is an arithmetic number, because the mean of its divisors is an integer number (745360).

2^2977987 is an apocalyptic number.

2977987 is a deficient number, since it is larger than the sum of its proper divisors (3453).

2977987 is a wasteful number, since it uses less digits than its factorization.

2977987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3452.

The product of its digits is 444528, while the sum is 49.

The square root of 2977987 is about 1725.6845018716. The cubic root of 2977987 is about 143.8713324689.

The spelling of 2977987 in words is "two million, nine hundred seventy-seven thousand, nine hundred eighty-seven".