2987892 has 18 divisors (see below), whose sum is σ = 7552818. Its totient is φ = 995952.

The previous prime is 2987863. The next prime is 2987911.

2987892 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 2702736 + 285156 = 1644^2 + 534^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 41463 + ... + 41534.

It is an arithmetic number, because the mean of its divisors is an integer number (419601).

2^2987892 is an apocalyptic number.

It is an amenable number.

2987892 is an abundant number, since it is smaller than the sum of its proper divisors (4564926).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2987892 is a wasteful number, since it uses less digits than its factorization.

2987892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83007 (or 83002 counting only the distinct ones).

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

The square root of 2987892 is about 1728.5519951682. The cubic root of 2987892 is about 144.0306647658.

The spelling of 2987892 in words is "two million, nine hundred eighty-seven thousand, eight hundred ninety-two".