28936708 has 6 divisors (see below), whose sum is σ = 50639246. Its totient is φ = 14468352.

The previous prime is 28936643. The next prime is 28936709. The reversal of 28936708 is 80763982.

It can be written as a sum of positive squares in only one way, i.e., 17322244 + 11614464 = 4162^2 + 3408^2 .

It is not an unprimeable number, because it can be changed into a prime (28936709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3617085 + ... + 3617092.

Almost surely, 2^28936708 is an apocalyptic number.

It is an amenable number.

28936708 is a deficient number, since it is larger than the sum of its proper divisors (21702538).

28936708 is a wasteful number, since it uses less digits than its factorization.

28936708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7234181 (or 7234179 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 28936708 is about 5379.2850826109. The cubic root of 28936708 is about 307.0080104861.

The spelling of 28936708 in words is "twenty-eight million, nine hundred thirty-six thousand, seven hundred eight".