28845316 has 6 divisors (see below), whose sum is σ = 50479310. Its totient is φ = 14422656.

The previous prime is 28845307. The next prime is 28845317. The reversal of 28845316 is 61354882.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 24049216 + 4796100 = 4904^2 + 2190^2 .

It is not an unprimeable number, because it can be changed into a prime (28845317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3605661 + ... + 3605668.

Almost surely, 2^28845316 is an apocalyptic number.

It is an amenable number.

28845316 is a deficient number, since it is larger than the sum of its proper divisors (21633994).

28845316 is a wasteful number, since it uses less digits than its factorization.

28845316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7211333 (or 7211331 counting only the distinct ones).

The product of its digits is 46080, while the sum is 37.

The square root of 28845316 is about 5370.7835554973. The cubic root of 28845316 is about 306.6844575900.

It can be divided in two parts, 28845 and 316, that added together give a triangular number (29161 = T₂₄₁).

The spelling of 28845316 in words is "twenty-eight million, eight hundred forty-five thousand, three hundred sixteen".