28946229 has 8 divisors (see below), whose sum is σ = 41563872. Its totient is φ = 17813040.

The previous prime is 28946207. The next prime is 28946231. The reversal of 28946229 is 92264982.

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

It is not a de Polignac number, because 28946229 - 2⁹ = 28945717 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 (28946249) 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, 371067 + ... + 371144.

It is an arithmetic number, because the mean of its divisors is an integer number (5195484).

Almost surely, 2^28946229 is an apocalyptic number.

It is an amenable number.

28946229 is a deficient number, since it is larger than the sum of its proper divisors (12617643).

28946229 is a wasteful number, since it uses less digits than its factorization.

28946229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742227.

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

The square root of 28946229 is about 5380.1699787274. The cubic root of 28946229 is about 307.0416782497.

The spelling of 28946229 in words is "twenty-eight million, nine hundred forty-six thousand, two hundred twenty-nine".