28777042 has 8 divisors (see below), whose sum is σ = 49332096. Its totient is φ = 12333012.

The previous prime is 28777037. The next prime is 28777043. The reversal of 28777042 is 24077782.

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

It is a junction number, because it is equal to n+sod(n) for n = 28776992 and 28777010.

It is not an unprimeable number, because it can be changed into a prime (28777043) 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, 1027738 + ... + 1027765.

It is an arithmetic number, because the mean of its divisors is an integer number (6166512).

Almost surely, 2^28777042 is an apocalyptic number.

28777042 is a deficient number, since it is larger than the sum of its proper divisors (20555054).

28777042 is a wasteful number, since it uses less digits than its factorization.

28777042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2055512.

The product of its (nonzero) digits is 43904, while the sum is 37.

The square root of 28777042 is about 5364.4237341955. The cubic root of 28777042 is about 306.4423025464.

The spelling of 28777042 in words is "twenty-eight million, seven hundred seventy-seven thousand, forty-two".