28925506 has 8 divisors (see below), whose sum is σ = 43412544. Its totient is φ = 14454660.

The previous prime is 28925473. The next prime is 28925509. The reversal of 28925506 is 60552982.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (28925509) 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 3 ways as a sum of consecutive naturals, for example, 2611 + ... + 8041.

It is an arithmetic number, because the mean of its divisors is an integer number (5426568).

Almost surely, 2^28925506 is an apocalyptic number.

28925506 is the 3402-nd centered pentagonal number.

28925506 is a deficient number, since it is larger than the sum of its proper divisors (14487038).

28925506 is a wasteful number, since it uses less digits than its factorization.

28925506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8096.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 28925506 is about 5378.2437653941. The cubic root of 28925506 is about 306.9683889828.

The spelling of 28925506 in words is "twenty-eight million, nine hundred twenty-five thousand, five hundred six".