28948297 has 8 divisors (see below), whose sum is σ = 35030016. Its totient is φ = 23353152.

The previous prime is 28948277. The next prime is 28948301. The reversal of 28948297 is 79284982.

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 28948297 - 2⁷ = 28948169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28948297.

It is not an unprimeable number, because it can be changed into a prime (28948217) 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, 121513 + ... + 121750.

It is an arithmetic number, because the mean of its divisors is an integer number (4378752).

Almost surely, 2^28948297 is an apocalyptic number.

It is an amenable number.

28948297 is a deficient number, since it is larger than the sum of its proper divisors (6081719).

28948297 is a wasteful number, since it uses less digits than its factorization.

28948297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243287.

The product of its digits is 580608, while the sum is 49.

The square root of 28948297 is about 5380.3621625314. The cubic root of 28948297 is about 307.0489900493.

The spelling of 28948297 in words is "twenty-eight million, nine hundred forty-eight thousand, two hundred ninety-seven".