28659316 has 18 divisors (see below), whose sum is σ = 58342578. Its totient is φ = 12282480.

The previous prime is 28659299. The next prime is 28659343. The reversal of 28659316 is 61395682.

It can be written as a sum of positive squares in only one way, i.e., 26112100 + 2547216 = 5110^2 + 1596^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72915 + ... + 73306.

Almost surely, 2^28659316 is an apocalyptic number.

It is an amenable number.

28659316 is an abundant number, since it is smaller than the sum of its proper divisors (29683262).

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

28659316 is a wasteful number, since it uses less digits than its factorization.

28659316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146239 (or 146230 counting only the distinct ones).

The product of its digits is 77760, while the sum is 40.

The square root of 28659316 is about 5353.4396419498. The cubic root of 28659316 is about 306.0238493665.

It can be divided in two parts, 28 and 659316, that added together give a square (659344 = 812²).

The spelling of 28659316 in words is "twenty-eight million, six hundred fifty-nine thousand, three hundred sixteen".