28835390 has 16 divisors (see below), whose sum is σ = 51967008. Its totient is φ = 11520096.

The previous prime is 28835357. The next prime is 28835431. The reversal of 28835390 is 9353882.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11924 + ... + 14136.

It is an arithmetic number, because the mean of its divisors is an integer number (3247938).

Almost surely, 2^28835390 is an apocalyptic number.

28835390 is a deficient number, since it is larger than the sum of its proper divisors (23131618).

28835390 is a wasteful number, since it uses less digits than its factorization.

28835390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3523.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 28835390 is about 5369.8594022563. The cubic root of 28835390 is about 306.6492756888.

The spelling of 28835390 in words is "twenty-eight million, eight hundred thirty-five thousand, three hundred ninety".