28908322 has 8 divisors (see below), whose sum is σ = 44534556. Its totient is φ = 14063472.

The previous prime is 28908317. The next prime is 28908343. The reversal of 28908322 is 22380982.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 24019801 + 4888521 = 4901^2 + 2211^2 .

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

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, 195253 + ... + 195400.

Almost surely, 2^28908322 is an apocalyptic number.

28908322 is a deficient number, since it is larger than the sum of its proper divisors (15626234).

28908322 is a wasteful number, since it uses less digits than its factorization.

28908322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390692.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 28908322 is about 5376.6459805347. The cubic root of 28908322 is about 306.9075892430.

It can be divided in two parts, 2890 and 8322, that multiplied together give a triangular number (24050580 = T₆₉₃₅).

The spelling of 28908322 in words is "twenty-eight million, nine hundred eight thousand, three hundred twenty-two".