28636522 has 8 divisors (see below), whose sum is σ = 43079616. Its totient is φ = 14276652.

The previous prime is 28636507. The next prime is 28636561. The reversal of 28636522 is 22563682.

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

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, 19938 + ... + 21325.

It is an arithmetic number, because the mean of its divisors is an integer number (5384952).

Almost surely, 2^28636522 is an apocalyptic number.

28636522 is a deficient number, since it is larger than the sum of its proper divisors (14443094).

28636522 is a wasteful number, since it uses less digits than its factorization.

28636522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41612.

The product of its digits is 34560, while the sum is 34.

The square root of 28636522 is about 5351.3103068314. The cubic root of 28636522 is about 305.9426964905.

The spelling of 28636522 in words is "twenty-eight million, six hundred thirty-six thousand, five hundred twenty-two".