28953272 has 8 divisors (see below), whose sum is σ = 54287400. Its totient is φ = 14476632.

The previous prime is 28953271. The next prime is 28953289. The reversal of 28953272 is 27235982.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28953271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1809572 + ... + 1809587.

It is an arithmetic number, because the mean of its divisors is an integer number (6785925).

Almost surely, 2^28953272 is an apocalyptic number.

It is an amenable number.

28953272 is a deficient number, since it is larger than the sum of its proper divisors (25334128).

28953272 is a wasteful number, since it uses less digits than its factorization.

28953272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3619165 (or 3619161 counting only the distinct ones).

The product of its digits is 60480, while the sum is 38.

The square root of 28953272 is about 5380.8244721418. The cubic root of 28953272 is about 307.0665786628.

The spelling of 28953272 in words is "twenty-eight million, nine hundred fifty-three thousand, two hundred seventy-two".