28894573 has 8 divisors (see below), whose sum is σ = 31397120. Its totient is φ = 26490240.

The previous prime is 28894571. The next prime is 28894589. The reversal of 28894573 is 37549882.

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 28894573 - 2¹ = 28894571 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28894571) 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, 23940 + ... + 25117.

It is an arithmetic number, because the mean of its divisors is an integer number (3924640).

Almost surely, 2^28894573 is an apocalyptic number.

It is an amenable number.

28894573 is a deficient number, since it is larger than the sum of its proper divisors (2502547).

28894573 is a wasteful number, since it uses less digits than its factorization.

28894573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49107.

The product of its digits is 483840, while the sum is 46.

The square root of 28894573 is about 5375.3672432681. The cubic root of 28894573 is about 306.8589257291.

The spelling of 28894573 in words is "twenty-eight million, eight hundred ninety-four thousand, five hundred seventy-three".