28822072 has 16 divisors (see below), whose sum is σ = 57220560. Its totient is φ = 13563264.

The previous prime is 28822063. The next prime is 28822099. The reversal of 28822072 is 27022882.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105828 + ... + 106099.

It is an arithmetic number, because the mean of its divisors is an integer number (3576285).

Almost surely, 2^28822072 is an apocalyptic number.

It is an amenable number.

28822072 is a deficient number, since it is larger than the sum of its proper divisors (28398488).

28822072 is a wasteful number, since it uses less digits than its factorization.

28822072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211950 (or 211946 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 28822072 is about 5368.6191893261. The cubic root of 28822072 is about 306.6020584330.

The spelling of 28822072 in words is "twenty-eight million, eight hundred twenty-two thousand, seventy-two".