28958589 has 24 divisors (see below), whose sum is σ = 46268352. Its totient is φ = 17305920.

The previous prime is 28958563. The next prime is 28958647. The reversal of 28958589 is 98585982.

28958589 is a `hidden beast` number, since 2 + 8 + 9 + 58 + 589 = 666.

It is not a de Polignac number, because 28958589 - 2¹⁷ = 28827517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28958509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5224 + ... + 9230.

It is an arithmetic number, because the mean of its divisors is an integer number (1927848).

Almost surely, 2^28958589 is an apocalyptic number.

It is an amenable number.

28958589 is a deficient number, since it is larger than the sum of its proper divisors (17309763).

28958589 is a wasteful number, since it uses less digits than its factorization.

28958589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4097 (or 4094 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 54.

The square root of 28958589 is about 5381.3185187275. The cubic root of 28958589 is about 307.0853741558.

The spelling of 28958589 in words is "twenty-eight million, nine hundred fifty-eight thousand, five hundred eighty-nine".