289494237 has 4 divisors (see below), whose sum is σ = 385992320. Its totient is φ = 192996156.

The previous prime is 289494209. The next prime is 289494251. The reversal of 289494237 is 732494982.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 289494237 - 2¹² = 289490141 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 (289494277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48249037 + ... + 48249042.

It is an arithmetic number, because the mean of its divisors is an integer number (96498080).

Almost surely, 2^289494237 is an apocalyptic number.

It is an amenable number.

289494237 is a deficient number, since it is larger than the sum of its proper divisors (96498083).

289494237 is an equidigital number, since it uses as much as digits as its factorization.

289494237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96498082.

The product of its digits is 870912, while the sum is 48.

The square root of 289494237 is about 17014.5301727670. The cubic root of 289494237 is about 661.5255779164.

The spelling of 289494237 in words is "two hundred eighty-nine million, four hundred ninety-four thousand, two hundred thirty-seven".