28756046 has 8 divisors (see below), whose sum is σ = 47055384. Its totient is φ = 13070920.

The previous prime is 28756043. The next prime is 28756093. The reversal of 28756046 is 64065782.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28756043) 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, 653525 + ... + 653568.

It is an arithmetic number, because the mean of its divisors is an integer number (5881923).

Almost surely, 2^28756046 is an apocalyptic number.

28756046 is a deficient number, since it is larger than the sum of its proper divisors (18299338).

28756046 is a wasteful number, since it uses less digits than its factorization.

28756046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307106.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 28756046 is about 5362.4664101512. The cubic root of 28756046 is about 306.3677566868.

The spelling of 28756046 in words is "twenty-eight million, seven hundred fifty-six thousand, forty-six".