2987817 has 16 divisors (see below), whose sum is σ = 4617600. Its totient is φ = 1683072.

The previous prime is 2987791. The next prime is 2987821. The reversal of 2987817 is 7187892.

It is not a de Polignac number, because 2987817 - 2⁶ = 2987753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2987827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 559 + ... + 2507.

It is an arithmetic number, because the mean of its divisors is an integer number (288600).

2^2987817 is an apocalyptic number.

It is an amenable number.

2987817 is a deficient number, since it is larger than the sum of its proper divisors (1629783).

2987817 is a wasteful number, since it uses less digits than its factorization.

2987817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2032.

The product of its digits is 56448, while the sum is 42.

The square root of 2987817 is about 1728.5303005733. The cubic root of 2987817 is about 144.0294596363.

The spelling of 2987817 in words is "two million, nine hundred eighty-seven thousand, eight hundred seventeen".