2987428 has 12 divisors (see below), whose sum is σ = 5247900. Its totient is φ = 1488032.

The previous prime is 2987407. The next prime is 2987429. The reversal of 2987428 is 8247892.

2987428 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2795584 + 191844 = 1672^2 + 438^2 .

It is not an unprimeable number, because it can be changed into a prime (2987429) 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 3 ways as a sum of consecutive naturals, for example, 103 + ... + 2446.

It is an arithmetic number, because the mean of its divisors is an integer number (437325).

2^2987428 is an apocalyptic number.

It is an amenable number.

2987428 is a deficient number, since it is larger than the sum of its proper divisors (2260472).

2987428 is a wasteful number, since it uses less digits than its factorization.

2987428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2846 (or 2844 counting only the distinct ones).

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

The square root of 2987428 is about 1728.4177735721. The cubic root of 2987428 is about 144.0232087078.

The spelling of 2987428 in words is "two million, nine hundred eighty-seven thousand, four hundred twenty-eight".