2887890 has 16 divisors (see below), whose sum is σ = 6931008. Its totient is φ = 770096.

The previous prime is 2887883. The next prime is 2887921. The reversal of 2887890 is 987882.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48102 + ... + 48161.

It is an arithmetic number, because the mean of its divisors is an integer number (433188).

2^2887890 is an apocalyptic number.

2887890 is an abundant number, since it is smaller than the sum of its proper divisors (4043118).

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

2887890 is a wasteful number, since it uses less digits than its factorization.

2887890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96273.

The product of its (nonzero) digits is 64512, while the sum is 42.

The square root of 2887890 is about 1699.3792984499. The cubic root of 2887890 is about 142.4055391209.

The spelling of 2887890 in words is "two million, eight hundred eighty-seven thousand, eight hundred ninety".