2987129 has 8 divisors (see below), whose sum is σ = 3107328. Its totient is φ = 2868480.

The previous prime is 2987113. The next prime is 2987141. The reversal of 2987129 is 9217892.

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 2987129 - 2⁴ = 2987113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2987092 and 2987101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2987429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4889 + ... + 5465.

It is an arithmetic number, because the mean of its divisors is an integer number (388416).

2^2987129 is an apocalyptic number.

It is an amenable number.

2987129 is a deficient number, since it is larger than the sum of its proper divisors (120199).

2987129 is a wasteful number, since it uses less digits than its factorization.

2987129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775.

The product of its digits is 18144, while the sum is 38.

The square root of 2987129 is about 1728.3312761158. The cubic root of 2987129 is about 144.0184036407.

The spelling of 2987129 in words is "two million, nine hundred eighty-seven thousand, one hundred twenty-nine".