28696992 has 48 divisors (see below), whose sum is σ = 79299360. Its totient is φ = 9061632.

The previous prime is 28696961. The next prime is 28696999. The reversal of 28696992 is 29969682.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (28696999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6043 + ... + 9690.

It is an arithmetic number, because the mean of its divisors is an integer number (1652070).

Almost surely, 2^28696992 is an apocalyptic number.

It is an amenable number.

28696992 is an abundant number, since it is smaller than the sum of its proper divisors (50602368).

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

28696992 is a wasteful number, since it uses less digits than its factorization.

28696992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15765 (or 15757 counting only the distinct ones).

The product of its digits is 839808, while the sum is 51.

The square root of 28696992 is about 5356.9573453594. The cubic root of 28696992 is about 306.1578919449.

The spelling of 28696992 in words is "twenty-eight million, six hundred ninety-six thousand, nine hundred ninety-two".