289764941 has 4 divisors (see below), whose sum is σ = 289869084. Its totient is φ = 289660800.

The previous prime is 289764929. The next prime is 289764947. The reversal of 289764941 is 149467982.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 149467982 = 2 ⋅74733991.

It can be written as a sum of positive squares in 2 ways, for example, as 64464841 + 225300100 = 8029^2 + 15010^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-289764941 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 289764941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289764947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47780 + ... + 53501.

It is an arithmetic number, because the mean of its divisors is an integer number (72467271).

Almost surely, 2^289764941 is an apocalyptic number.

It is an amenable number.

289764941 is a deficient number, since it is larger than the sum of its proper divisors (104143).

289764941 is a wasteful number, since it uses less digits than its factorization.

289764941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104142.

The product of its digits is 870912, while the sum is 50.

The square root of 289764941 is about 17022.4833969665. The cubic root of 289764941 is about 661.7317096318.

The spelling of 289764941 in words is "two hundred eighty-nine million, seven hundred sixty-four thousand, nine hundred forty-one".