28949043 has 8 divisors (see below), whose sum is σ = 39142656. Its totient is φ = 19027400.

The previous prime is 28949029. The next prime is 28949051. The reversal of 28949043 is 34094982.

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 28949043 - 2⁶ = 28948979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28948992 and 28949010.

It is not an unprimeable number, because it can be changed into a prime (28949003) 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, 67743 + ... + 68168.

It is an arithmetic number, because the mean of its divisors is an integer number (4892832).

Almost surely, 2^28949043 is an apocalyptic number.

28949043 is a deficient number, since it is larger than the sum of its proper divisors (10193613).

28949043 is a wasteful number, since it uses less digits than its factorization.

28949043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135985.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 28949043 is about 5380.4314882730. The cubic root of 28949043 is about 307.0516275859.

The spelling of 28949043 in words is "twenty-eight million, nine hundred forty-nine thousand, forty-three".