289914457 has 8 divisors (see below), whose sum is σ = 333940736. Its totient is φ = 246540672.

The previous prime is 289914451. The next prime is 289914503. The reversal of 289914457 is 754419982.

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

It is not a de Polignac number, because 289914457 - 2¹¹ = 289912409 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 289914457.

It is not an unprimeable number, because it can be changed into a prime (289914451) 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, 162168 + ... + 163945.

It is an arithmetic number, because the mean of its divisors is an integer number (41742592).

Almost surely, 2^289914457 is an apocalyptic number.

It is an amenable number.

289914457 is a deficient number, since it is larger than the sum of its proper divisors (44026279).

289914457 is a wasteful number, since it uses less digits than its factorization.

289914457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326247.

The product of its digits is 725760, while the sum is 49.

The square root of 289914457 is about 17026.8745517197. The cubic root of 289914457 is about 661.8455058529.

The spelling of 289914457 in words is "two hundred eighty-nine million, nine hundred fourteen thousand, four hundred fifty-seven".