28739953 has 8 divisors (see below), whose sum is σ = 32082336. Its totient is φ = 25519200.

The previous prime is 28739941. The next prime is 28739999. The reversal of 28739953 is 35993782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28739953 - 2⁹ = 28739441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28739933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29908 + ... + 30853.

It is an arithmetic number, because the mean of its divisors is an integer number (4010292).

Almost surely, 2^28739953 is an apocalyptic number.

It is an amenable number.

28739953 is a deficient number, since it is larger than the sum of its proper divisors (3342383).

28739953 is a wasteful number, since it uses less digits than its factorization.

28739953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60815.

The product of its digits is 408240, while the sum is 46.

The square root of 28739953 is about 5360.9656779353. The cubic root of 28739953 is about 306.3105942575.

It can be divided in two parts, 28739 and 953, that added together give a palindrome (29692).

The spelling of 28739953 in words is "twenty-eight million, seven hundred thirty-nine thousand, nine hundred fifty-three".