28797022 has 8 divisors (see below), whose sum is σ = 43314336. Its totient is φ = 14358912.

The previous prime is 28797011. The next prime is 28797023. The reversal of 28797022 is 22079782.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28797023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18883 + ... + 20350.

It is an arithmetic number, because the mean of its divisors is an integer number (5414292).

Almost surely, 2^28797022 is an apocalyptic number.

28797022 is a deficient number, since it is larger than the sum of its proper divisors (14517314).

28797022 is a wasteful number, since it uses less digits than its factorization.

28797022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39602.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 28797022 is about 5366.2856800584. The cubic root of 28797022 is about 306.5132074567.

The spelling of 28797022 in words is "twenty-eight million, seven hundred ninety-seven thousand, twenty-two".