28922797 has 8 divisors (see below), whose sum is σ = 30718656. Its totient is φ = 27137472.

The previous prime is 28922779. The next prime is 28922821. The reversal of 28922797 is 79722982.

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-28922797 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 (28922737) 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, 3448 + ... + 8350.

It is an arithmetic number, because the mean of its divisors is an integer number (3839832).

Almost surely, 2^28922797 is an apocalyptic number.

It is an amenable number.

28922797 is a deficient number, since it is larger than the sum of its proper divisors (1795859).

28922797 is a wasteful number, since it uses less digits than its factorization.

28922797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5267.

The product of its digits is 254016, while the sum is 46.

The square root of 28922797 is about 5377.9919114852. The cubic root of 28922797 is about 306.9588057067.

The spelling of 28922797 in words is "twenty-eight million, nine hundred twenty-two thousand, seven hundred ninety-seven".