28352797 has 16 divisors (see below), whose sum is σ = 31871232. Its totient is φ = 25001920.

The previous prime is 28352791. The next prime is 28352801. The reversal of 28352797 is 79725382.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28352797 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 (28352791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89283 + ... + 89599.

It is an arithmetic number, because the mean of its divisors is an integer number (1991952).

Almost surely, 2^28352797 is an apocalyptic number.

It is an amenable number.

28352797 is a deficient number, since it is larger than the sum of its proper divisors (3518435).

28352797 is a wasteful number, since it uses less digits than its factorization.

28352797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548.

The product of its digits is 211680, while the sum is 43.

The square root of 28352797 is about 5324.7344534728. The cubic root of 28352797 is about 304.9289344417.

The spelling of 28352797 in words is "twenty-eight million, three hundred fifty-two thousand, seven hundred ninety-seven".