2987671 has 4 divisors (see below), whose sum is σ = 3028672. Its totient is φ = 2946672.

The previous prime is 2987659. The next prime is 2987707. The reversal of 2987671 is 1767892.

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

It is a cyclic number.

It is not a de Polignac number, because 2987671 - 2¹³ = 2979479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2987651) 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, 20391 + ... + 20536.

It is an arithmetic number, because the mean of its divisors is an integer number (757168).

2^2987671 is an apocalyptic number.

2987671 is a deficient number, since it is larger than the sum of its proper divisors (41001).

2987671 is an equidigital number, since it uses as much as digits as its factorization.

2987671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41000.

The product of its digits is 42336, while the sum is 40.

The square root of 2987671 is about 1728.4880676476. The cubic root of 2987671 is about 144.0271135931.

The spelling of 2987671 in words is "two million, nine hundred eighty-seven thousand, six hundred seventy-one".