2987842 has 32 divisors (see below), whose sum is σ = 5451264. Its totient is φ = 1209600.

The previous prime is 2987839. The next prime is 2987843. The reversal of 2987842 is 2487892.

2987842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2987795 and 2987804.

It is not an unprimeable number, because it can be changed into a prime (2987843) 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 15 ways as a sum of consecutive naturals, for example, 8698 + ... + 9034.

It is an arithmetic number, because the mean of its divisors is an integer number (170352).

2^2987842 is an apocalyptic number.

2987842 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2987842 is a deficient number, since it is larger than the sum of its proper divisors (2463422).

2987842 is a wasteful number, since it uses less digits than its factorization.

2987842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394.

The product of its digits is 64512, while the sum is 40.

The square root of 2987842 is about 1728.5375321352. The cubic root of 2987842 is about 144.0298613484.

The spelling of 2987842 in words is "two million, nine hundred eighty-seven thousand, eight hundred forty-two".