28927773 has 40 divisors (see below), whose sum is σ = 49848128. Its totient is φ = 16376256.

The previous prime is 28927757. The next prime is 28927781. The reversal of 28927773 is 37772982.

It is not a de Polignac number, because 28927773 - 2⁴ = 28927757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28927733) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 92265 + ... + 92577.

Almost surely, 2^28927773 is an apocalyptic number.

It is an amenable number.

28927773 is a deficient number, since it is larger than the sum of its proper divisors (20920355).

28927773 is a wasteful number, since it uses less digits than its factorization.

28927773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495 (or 486 counting only the distinct ones).

The product of its digits is 296352, while the sum is 45.

The square root of 28927773 is about 5378.4545177960. The cubic root of 28927773 is about 306.9764081932.

The spelling of 28927773 in words is "twenty-eight million, nine hundred twenty-seven thousand, seven hundred seventy-three".