289095992 has 8 divisors (see below), whose sum is σ = 542055000. Its totient is φ = 144547992.

The previous prime is 289095991. The next prime is 289096021. The reversal of 289095992 is 299590982.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289095991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18068492 + ... + 18068507.

It is an arithmetic number, because the mean of its divisors is an integer number (67756875).

Almost surely, 2^289095992 is an apocalyptic number.

It is an amenable number.

289095992 is a deficient number, since it is larger than the sum of its proper divisors (252959008).

289095992 is a wasteful number, since it uses less digits than its factorization.

289095992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36137005 (or 36137001 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 53.

The square root of 289095992 is about 17002.8230597157. The cubic root of 289095992 is about 661.2220944410. Note that the first 3 decimals are identical.

The spelling of 289095992 in words is "two hundred eighty-nine million, ninety-five thousand, nine hundred ninety-two".