289892493 has 32 divisors (see below), whose sum is σ = 471573120. Its totient is φ = 174545280.

The previous prime is 289892459. The next prime is 289892507. The reversal of 289892493 is 394298982.

It is a happy number.

It is not a de Polignac number, because 289892493 - 2¹⁷ = 289761421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289892453) 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 31 ways as a sum of consecutive naturals, for example, 43521 + ... + 49737.

It is an arithmetic number, because the mean of its divisors is an integer number (14736660).

Almost surely, 2^289892493 is an apocalyptic number.

It is an amenable number.

289892493 is a deficient number, since it is larger than the sum of its proper divisors (181680627).

289892493 is a wasteful number, since it uses less digits than its factorization.

289892493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6394 (or 6388 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 289892493 is about 17026.2295591244. The cubic root of 289892493 is about 661.8287915642.

The spelling of 289892493 in words is "two hundred eighty-nine million, eight hundred ninety-two thousand, four hundred ninety-three".