2887280091 has 12 divisors (see below), whose sum is σ = 4351842768. Its totient is φ = 1841163984.

The previous prime is 2887280059. The next prime is 2887280093. The reversal of 2887280091 is 1900827882.

It is a happy number.

2887280091 is a `hidden beast` number, since 288 + 7 + 280 + 0 + 91 = 666.

2887280091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2887280091 - 2⁵ = 2887280059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2887280093) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6973900 + ... + 6974313.

It is an arithmetic number, because the mean of its divisors is an integer number (362653564).

Almost surely, 2^2887280091 is an apocalyptic number.

2887280091 is a deficient number, since it is larger than the sum of its proper divisors (1464562677).

2887280091 is a wasteful number, since it uses less digits than its factorization.

2887280091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13948242 (or 13948239 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The square root of 2887280091 is about 53733.4168930285. The cubic root of 2887280091 is about 1423.9551328484.

The spelling of 2887280091 in words is "two billion, eight hundred eighty-seven million, two hundred eighty thousand, ninety-one".