28766072 has 16 divisors (see below), whose sum is σ = 54007560. Its totient is φ = 14364064.

The previous prime is 28766069. The next prime is 28766093. The reversal of 28766072 is 27066782.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5678 + ... + 9474.

Almost surely, 2^28766072 is an apocalyptic number.

It is an amenable number.

28766072 is a deficient number, since it is larger than the sum of its proper divisors (25241488).

28766072 is a wasteful number, since it uses less digits than its factorization.

28766072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4750 (or 4746 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 28766072 is about 5363.4011597120. The cubic root of 28766072 is about 306.4033583154.

The spelling of 28766072 in words is "twenty-eight million, seven hundred sixty-six thousand, seventy-two".