28822923 has 12 divisors (see below), whose sum is σ = 41737488. Its totient is φ = 19167120.

The previous prime is 28822921. The next prime is 28822949. The reversal of 28822923 is 32922882.

It is not a de Polignac number, because 28822923 - 2¹ = 28822921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28822921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15 + ... + 7592.

It is an arithmetic number, because the mean of its divisors is an integer number (3478124).

Almost surely, 2^28822923 is an apocalyptic number.

28822923 is a deficient number, since it is larger than the sum of its proper divisors (12914565).

28822923 is a wasteful number, since it uses less digits than its factorization.

28822923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8034 (or 8031 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 28822923 is about 5368.6984456198. The cubic root of 28822923 is about 306.6050759790.

The spelling of 28822923 in words is "twenty-eight million, eight hundred twenty-two thousand, nine hundred twenty-three".