28973322 has 32 divisors (see below), whose sum is σ = 73584000. Its totient is φ = 8277984.

The previous prime is 28973311. The next prime is 28973333. The reversal of 28973322 is 22337982.

It is an interprime number because it is at equal distance from previous prime (28973311) and next prime (28973333).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37947 + ... + 38702.

It is an arithmetic number, because the mean of its divisors is an integer number (2299500).

Almost surely, 2^28973322 is an apocalyptic number.

28973322 is an abundant number, since it is smaller than the sum of its proper divisors (44610678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28973322 is a wasteful number, since it uses less digits than its factorization.

28973322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76667 (or 76661 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 28973322 is about 5382.6872470914. The cubic root of 28973322 is about 307.1374430115.

The spelling of 28973322 in words is "twenty-eight million, nine hundred seventy-three thousand, three hundred twenty-two".