28354897 has 8 divisors (see below), whose sum is σ = 29937600. Its totient is φ = 26781264.

The previous prime is 28354891. The next prime is 28354901. The reversal of 28354897 is 79845382.

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 28354897 - 2³ = 28354889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28354891) 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 7 ways as a sum of consecutive naturals, for example, 4743 + ... + 8899.

It is an arithmetic number, because the mean of its divisors is an integer number (3742200).

Almost surely, 2^28354897 is an apocalyptic number.

It is an amenable number.

28354897 is a deficient number, since it is larger than the sum of its proper divisors (1582703).

28354897 is a wasteful number, since it uses less digits than its factorization.

28354897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4535.

The product of its digits is 483840, while the sum is 46.

The square root of 28354897 is about 5324.9316427537. The cubic root of 28354897 is about 304.9364626226.

The spelling of 28354897 in words is "twenty-eight million, three hundred fifty-four thousand, eight hundred ninety-seven".