28818797 has 8 divisors (see below), whose sum is σ = 33276096. Its totient is φ = 24446592.

The previous prime is 28818767. The next prime is 28818817. The reversal of 28818797 is 79781882.

It is a happy number.

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 28818797 - 2⁶ = 28818733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28818767) 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, 20543 + ... + 21900.

It is an arithmetic number, because the mean of its divisors is an integer number (4159512).

Almost surely, 2^28818797 is an apocalyptic number.

It is an amenable number.

28818797 is a deficient number, since it is larger than the sum of its proper divisors (4457299).

28818797 is an equidigital number, since it uses as much as digits as its factorization.

28818797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42547.

The product of its digits is 451584, while the sum is 50.

The square root of 28818797 is about 5368.3141674086. The cubic root of 28818797 is about 306.5904451137.

The spelling of 28818797 in words is "twenty-eight million, eight hundred eighteen thousand, seven hundred ninety-seven".