2987761 has 8 divisors (see below), whose sum is σ = 3447360. Its totient is φ = 2536368.

The previous prime is 2987753. The next prime is 2987771. The reversal of 2987761 is 1677892.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2987761 - 2³ = 2987753 is a prime.

2987761 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2987771) 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 7 ways as a sum of consecutive naturals, for example, 1246 + ... + 2743.

It is an arithmetic number, because the mean of its divisors is an integer number (430920).

2^2987761 is an apocalyptic number.

It is an amenable number.

2987761 is a deficient number, since it is larger than the sum of its proper divisors (459599).

2987761 is a wasteful number, since it uses less digits than its factorization.

2987761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4103.

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

The square root of 2987761 is about 1728.5141017649. The cubic root of 2987761 is about 144.0285597931.

The spelling of 2987761 in words is "two million, nine hundred eighty-seven thousand, seven hundred sixty-one".