289996772 has 48 divisors (see below), whose sum is σ = 589411200. Its totient is φ = 123690240.

The previous prime is 289996757. The next prime is 289996783. The reversal of 289996772 is 277699982.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36929 + ... + 44087.

It is an arithmetic number, because the mean of its divisors is an integer number (12279400).

Almost surely, 2^289996772 is an apocalyptic number.

It is an amenable number.

289996772 is an abundant number, since it is smaller than the sum of its proper divisors (299414428).

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

289996772 is a wasteful number, since it uses less digits than its factorization.

289996772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7236 (or 7234 counting only the distinct ones).

The product of its digits is 6858432, while the sum is 59.

The square root of 289996772 is about 17029.2915883192. The cubic root of 289996772 is about 661.9081388770.

The spelling of 289996772 in words is "two hundred eighty-nine million, nine hundred ninety-six thousand, seven hundred seventy-two".