28626505 has 8 divisors (see below), whose sum is σ = 34934400. Its totient is φ = 22512816.

The previous prime is 28626503. The next prime is 28626511. The reversal of 28626505 is 50562682.

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 28626505 - 2¹ = 28626503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28626503) 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, 48225 + ... + 48814.

It is an arithmetic number, because the mean of its divisors is an integer number (4366800).

Almost surely, 2^28626505 is an apocalyptic number.

It is an amenable number.

28626505 is a deficient number, since it is larger than the sum of its proper divisors (6307895).

28626505 is an equidigital number, since it uses as much as digits as its factorization.

28626505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97103.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 28626505 is about 5350.3742859729. The cubic root of 28626505 is about 305.9070196092.

The spelling of 28626505 in words is "twenty-eight million, six hundred twenty-six thousand, five hundred five".