28779054 has 8 divisors (see below), whose sum is σ = 57558120. Its totient is φ = 9593016.

The previous prime is 28779043. The next prime is 28779059. The reversal of 28779054 is 45097782.

It is a sphenic number, since it is the product of 3 distinct primes.

28779054 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 28778997 and 28779015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28779059) 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 3 ways as a sum of consecutive naturals, for example, 2398249 + ... + 2398260.

It is an arithmetic number, because the mean of its divisors is an integer number (7194765).

Almost surely, 2^28779054 is an apocalyptic number.

28779054 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28779054 is a wasteful number, since it uses less digits than its factorization.

28779054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4796514.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 28779054 is about 5364.6112627105. The cubic root of 28779054 is about 306.4494442064.

The spelling of 28779054 in words is "twenty-eight million, seven hundred seventy-nine thousand, fifty-four".