28872735 has 8 divisors (see below), whose sum is σ = 46196400. Its totient is φ = 15398784.

The previous prime is 28872731. The next prime is 28872763. The reversal of 28872735 is 53727882.

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

It is not a de Polignac number, because 28872735 - 2² = 28872731 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28872731) 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, 962410 + ... + 962439.

It is an arithmetic number, because the mean of its divisors is an integer number (5774550).

Almost surely, 2^28872735 is an apocalyptic number.

28872735 is a deficient number, since it is larger than the sum of its proper divisors (17323665).

28872735 is a wasteful number, since it uses less digits than its factorization.

28872735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1924857.

The product of its digits is 188160, while the sum is 42.

The square root of 28872735 is about 5373.3355562444. The cubic root of 28872735 is about 306.7816000880.

The spelling of 28872735 in words is "twenty-eight million, eight hundred seventy-two thousand, seven hundred thirty-five".