289998137 has 8 divisors (see below), whose sum is σ = 340697280. Its totient is φ = 243354960.

The previous prime is 289998113. The next prime is 289998143. The reversal of 289998137 is 731899982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 289998137 - 2¹⁴ = 289981753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (289998187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1013837 + ... + 1014122.

It is an arithmetic number, because the mean of its divisors is an integer number (42587160).

Almost surely, 2^289998137 is an apocalyptic number.

It is an amenable number.

289998137 is a deficient number, since it is larger than the sum of its proper divisors (50699143).

289998137 is a wasteful number, since it uses less digits than its factorization.

289998137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2027983.

The product of its digits is 1959552, while the sum is 56.

The square root of 289998137 is about 17029.3316662751. The cubic root of 289998137 is about 661.9091773979.

The spelling of 289998137 in words is "two hundred eighty-nine million, nine hundred ninety-eight thousand, one hundred thirty-seven".