289897473 has 8 divisors (see below), whose sum is σ = 391974336. Its totient is φ = 190542800.

The previous prime is 289897463. The next prime is 289897499. The reversal of 289897473 is 374798982.

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 289897473 - 2⁵ = 289897441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (289897403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 680298 + ... + 680723.

It is an arithmetic number, because the mean of its divisors is an integer number (48996792).

Almost surely, 2^289897473 is an apocalyptic number.

It is an amenable number.

289897473 is a deficient number, since it is larger than the sum of its proper divisors (102076863).

289897473 is a wasteful number, since it uses less digits than its factorization.

289897473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361095.

The product of its digits is 6096384, while the sum is 57.

The square root of 289897473 is about 17026.3758034410. The cubic root of 289897473 is about 661.8325813467.

The spelling of 289897473 in words is "two hundred eighty-nine million, eight hundred ninety-seven thousand, four hundred seventy-three".