2987829 has 12 divisors (see below), whose sum is σ = 4647916. Its totient is φ = 1838592.

The previous prime is 2987827. The next prime is 2987839. The reversal of 2987829 is 9287892.

It can be written as a sum of positive squares in 2 ways, for example, as 1782225 + 1205604 = 1335^2 + 1098^2 .

It is not a de Polignac number, because 2987829 - 2¹ = 2987827 is a prime.

It is a Curzon number.

2987829 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2987821) 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 11 ways as a sum of consecutive naturals, for example, 12652 + ... + 12885.

2^2987829 is an apocalyptic number.

It is an amenable number.

2987829 is a deficient number, since it is larger than the sum of its proper divisors (1660087).

2987829 is a wasteful number, since it uses less digits than its factorization.

2987829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25556 (or 25553 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 2987829 is about 1728.5337717268. The cubic root of 2987829 is about 144.0296524584.

The spelling of 2987829 in words is "two million, nine hundred eighty-seven thousand, eight hundred twenty-nine".