289630798 has 4 divisors (see below), whose sum is σ = 434446200. Its totient is φ = 144815398.

The previous prime is 289630787. The next prime is 289630807. The reversal of 289630798 is 897036982.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 897036982 = 2 ⋅448518491.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 72407698 + ... + 72407701.

It is an arithmetic number, because the mean of its divisors is an integer number (108611550).

Almost surely, 2^289630798 is an apocalyptic number.

289630798 is a deficient number, since it is larger than the sum of its proper divisors (144815402).

289630798 is a wasteful number, since it uses less digits than its factorization.

289630798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144815401.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The square root of 289630798 is about 17018.5427695793. The cubic root of 289630798 is about 661.6295804396.

The spelling of 289630798 in words is "two hundred eighty-nine million, six hundred thirty thousand, seven hundred ninety-eight".