28773372 has 24 divisors (see below), whose sum is σ = 70672000. Its totient is φ = 9086256.

The previous prime is 28773343. The next prime is 28773373. The reversal of 28773372 is 27337782.

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 28773372.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28773373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62872 + ... + 63327.

Almost surely, 2^28773372 is an apocalyptic number.

It is an amenable number.

28773372 is an abundant number, since it is smaller than the sum of its proper divisors (41898628).

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

28773372 is a wasteful number, since it uses less digits than its factorization.

28773372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126225 (or 126223 counting only the distinct ones).

The product of its digits is 98784, while the sum is 39.

The square root of 28773372 is about 5364.0816548595. The cubic root of 28773372 is about 306.4292749037.

The spelling of 28773372 in words is "twenty-eight million, seven hundred seventy-three thousand, three hundred seventy-two".