28726092 has 18 divisors (see below), whose sum is σ = 72613268. Its totient is φ = 9575352.

The previous prime is 28726091. The next prime is 28726111. The reversal of 28726092 is 29062782.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 797947 = 28726092 / (2 + 8 + 7 + 2 + 6 + 0 + 9 + 2).

It is not an unprimeable number, because it can be changed into a prime (28726091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 398938 + ... + 399009.

Almost surely, 2^28726092 is an apocalyptic number.

It is an amenable number.

28726092 is an abundant number, since it is smaller than the sum of its proper divisors (43887176).

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

28726092 is a wasteful number, since it uses less digits than its factorization.

28726092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797957 (or 797952 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 28726092 is about 5359.6727512041. The cubic root of 28726092 is about 306.2613427980.

The spelling of 28726092 in words is "twenty-eight million, seven hundred twenty-six thousand, ninety-two".