289494957 has 16 divisors (see below), whose sum is σ = 405969408. Its totient is φ = 183243840.

The previous prime is 289494943. The next prime is 289494977. The reversal of 289494957 is 759494982.

It is not a de Polignac number, because 289494957 - 2⁴ = 289494941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 289494897 and 289494906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289494977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24438 + ... + 34295.

It is an arithmetic number, because the mean of its divisors is an integer number (25373088).

Almost surely, 2^289494957 is an apocalyptic number.

It is an amenable number.

289494957 is a deficient number, since it is larger than the sum of its proper divisors (116474451).

289494957 is a wasteful number, since it uses less digits than its factorization.

289494957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58820.

The product of its digits is 6531840, while the sum is 57.

The square root of 289494957 is about 17014.5513311401. The cubic root of 289494957 is about 661.5261263419.

The spelling of 289494957 in words is "two hundred eighty-nine million, four hundred ninety-four thousand, nine hundred fifty-seven".