28496736 has 36 divisors (see below), whose sum is σ = 81038412. Its totient is φ = 9498816.

The previous prime is 28496731. The next prime is 28496737. The reversal of 28496736 is 63769482.

It is a tau number, because it is divible by the number of its divisors (36).

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 28496691 and 28496700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28496731) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49186 + ... + 49761.

It is an arithmetic number, because the mean of its divisors is an integer number (2251067).

Almost surely, 2^28496736 is an apocalyptic number.

It is an amenable number.

28496736 is an abundant number, since it is smaller than the sum of its proper divisors (52541676).

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

28496736 is a wasteful number, since it uses less digits than its factorization.

28496736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98963 (or 98952 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 28496736 is about 5338.2334156535. The cubic root of 28496736 is about 305.4440758626. Note that the first 3 decimals are identical.

It can be divided in two parts, 284 and 96736, that added together give a triangular number (97020 = T₄₄₀).

The spelling of 28496736 in words is "twenty-eight million, four hundred ninety-six thousand, seven hundred thirty-six".