28348197 has 16 divisors (see below), whose sum is σ = 40383360. Its totient is φ = 17626112.

The previous prime is 28348193. The next prime is 28348207. The reversal of 28348197 is 79184382.

It is a cyclic number.

It is not a de Polignac number, because 28348197 - 2² = 28348193 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28348193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3304 + ... + 8222.

It is an arithmetic number, because the mean of its divisors is an integer number (2523960).

Almost surely, 2^28348197 is an apocalyptic number.

It is an amenable number.

28348197 is a deficient number, since it is larger than the sum of its proper divisors (12035163).

28348197 is a wasteful number, since it uses less digits than its factorization.

28348197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5052.

The product of its digits is 96768, while the sum is 42.

The square root of 28348197 is about 5324.3024895286. The cubic root of 28348197 is about 304.9124428417.

The spelling of 28348197 in words is "twenty-eight million, three hundred forty-eight thousand, one hundred ninety-seven".