28860693 has 8 divisors (see below), whose sum is σ = 38834400. Its totient is φ = 19063728.

The previous prime is 28860691. The next prime is 28860731. The reversal of 28860693 is 39606882.

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

It is not a de Polignac number, because 28860693 - 2¹ = 28860691 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28860691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43803 + ... + 44456.

It is an arithmetic number, because the mean of its divisors is an integer number (4854300).

Almost surely, 2^28860693 is an apocalyptic number.

It is an amenable number.

28860693 is a deficient number, since it is larger than the sum of its proper divisors (9973707).

28860693 is a wasteful number, since it uses less digits than its factorization.

28860693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88371.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 28860693 is about 5372.2149063491. The cubic root of 28860693 is about 306.7389441851.

The spelling of 28860693 in words is "twenty-eight million, eight hundred sixty thousand, six hundred ninety-three".