28926143 has 8 divisors (see below), whose sum is σ = 29787648. Its totient is φ = 28073304.

The previous prime is 28926077. The next prime is 28926173. The reversal of 28926143 is 34162982.

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 28926143 - 2⁸ = 28925887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28926173) 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, 4946 + ... + 9072.

It is an arithmetic number, because the mean of its divisors is an integer number (3723456).

Almost surely, 2^28926143 is an apocalyptic number.

28926143 is a deficient number, since it is larger than the sum of its proper divisors (861505).

28926143 is a wasteful number, since it uses less digits than its factorization.

28926143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4333.

The product of its digits is 20736, while the sum is 35.

The square root of 28926143 is about 5378.3029851432. The cubic root of 28926143 is about 306.9706423277.

The spelling of 28926143 in words is "twenty-eight million, nine hundred twenty-six thousand, one hundred forty-three".