28352672 has 12 divisors (see below), whose sum is σ = 55819386. Its totient is φ = 14176320.

The previous prime is 28352659. The next prime is 28352677. The reversal of 28352672 is 27625382.

It can be written as a sum of positive squares in only one way, i.e., 20757136 + 7595536 = 4556^2 + 2756^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (28352677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 442979 + ... + 443042.

Almost surely, 2^28352672 is an apocalyptic number.

It is an amenable number.

28352672 is a deficient number, since it is larger than the sum of its proper divisors (27466714).

28352672 is an equidigital number, since it uses as much as digits as its factorization.

28352672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886031 (or 886023 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 28352672 is about 5324.7227157853. The cubic root of 28352672 is about 304.9284863240.

The spelling of 28352672 in words is "twenty-eight million, three hundred fifty-two thousand, six hundred seventy-two".