28695456 has 72 divisors (see below), whose sum is σ = 86417604. Its totient is φ = 9000960.

The previous prime is 28695397. The next prime is 28695479. The reversal of 28695456 is 65459682.

It can be written as a sum of positive squares in 2 ways, for example, as 28259856 + 435600 = 5316^2 + 660^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1966 + ... + 7826.

Almost surely, 2^28695456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28695456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43208802).

28695456 is an abundant number, since it is smaller than the sum of its proper divisors (57722148).

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

28695456 is a wasteful number, since it uses less digits than its factorization.

28695456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5894 (or 5883 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The square root of 28695456 is about 5356.8139784764. The cubic root of 28695456 is about 306.1524295034.

The spelling of 28695456 in words is "twenty-eight million, six hundred ninety-five thousand, four hundred fifty-six".