2989895287 has 4 divisors (see below), whose sum is σ = 2990646576. Its totient is φ = 2989144000.

The previous prime is 2989895267. The next prime is 2989895299. The reversal of 2989895287 is 7825989892.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2989895287 - 2⁷ = 2989895159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2989895257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 369643 + ... + 377644.

It is an arithmetic number, because the mean of its divisors is an integer number (747661644).

Almost surely, 2^2989895287 is an apocalyptic number.

2989895287 is a deficient number, since it is larger than the sum of its proper divisors (751289).

2989895287 is an equidigital number, since it uses as much as digits as its factorization.

2989895287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751288.

The product of its digits is 52254720, while the sum is 67.

The square root of 2989895287 is about 54679.9349578984. The cubic root of 2989895287 is about 1440.6284690822.

The spelling of 2989895287 in words is "two billion, nine hundred eighty-nine million, eight hundred ninety-five thousand, two hundred eighty-seven".