28953788 has 12 divisors (see below), whose sum is σ = 53649792. Its totient is φ = 13625280.

The previous prime is 28953763. The next prime is 28953791. The reversal of 28953788 is 88735982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212828 + ... + 212963.

It is an arithmetic number, because the mean of its divisors is an integer number (4470816).

Almost surely, 2^28953788 is an apocalyptic number.

It is an amenable number.

28953788 is a deficient number, since it is larger than the sum of its proper divisors (24696004).

28953788 is a wasteful number, since it uses less digits than its factorization.

28953788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425812 (or 425810 counting only the distinct ones).

The product of its digits is 967680, while the sum is 50.

The square root of 28953788 is about 5380.8724199706. The cubic root of 28953788 is about 307.0684028137.

The spelling of 28953788 in words is "twenty-eight million, nine hundred fifty-three thousand, seven hundred eighty-eight".