28989826 has 8 divisors (see below), whose sum is σ = 44496144. Its totient is φ = 14157780.

The previous prime is 28989799. The next prime is 28989841. The reversal of 28989826 is 62898982.

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, 168460 + ... + 168631.

It is an arithmetic number, because the mean of its divisors is an integer number (5562018).

Almost surely, 2^28989826 is an apocalyptic number.

28989826 is a deficient number, since it is larger than the sum of its proper divisors (15506318).

28989826 is a wasteful number, since it uses less digits than its factorization.

28989826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337136.

The product of its digits is 995328, while the sum is 52.

The square root of 28989826 is about 5384.2200920839. The cubic root of 28989826 is about 307.1957499163.

The spelling of 28989826 in words is "twenty-eight million, nine hundred eighty-nine thousand, eight hundred twenty-six".