28935197 has 8 divisors (see below), whose sum is σ = 29400000. Its totient is φ = 28473984.

The previous prime is 28935169. The next prime is 28935199. The reversal of 28935197 is 79153982.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28935197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28935199) 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, 18554 + ... + 20052.

It is an arithmetic number, because the mean of its divisors is an integer number (3675000).

Almost surely, 2^28935197 is an apocalyptic number.

It is an amenable number.

28935197 is a deficient number, since it is larger than the sum of its proper divisors (464803).

28935197 is a wasteful number, since it uses less digits than its factorization.

28935197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1795.

The product of its digits is 136080, while the sum is 44.

The square root of 28935197 is about 5379.1446346050. The cubic root of 28935197 is about 307.0026666718.

The spelling of 28935197 in words is "twenty-eight million, nine hundred thirty-five thousand, one hundred ninety-seven".