28990852 has 12 divisors (see below), whose sum is σ = 55346256. Its totient is φ = 13177640.

The previous prime is 28990849. The next prime is 28990861. The reversal of 28990852 is 25809982.

It is a junction number, because it is equal to n+sod(n) for n = 28990799 and 28990808.

It is an unprimeable number.

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, 329398 + ... + 329485.

It is an arithmetic number, because the mean of its divisors is an integer number (4612188).

Almost surely, 2^28990852 is an apocalyptic number.

28990852 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28990852 is a deficient number, since it is larger than the sum of its proper divisors (26355404).

28990852 is a wasteful number, since it uses less digits than its factorization.

28990852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658898 (or 658896 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 28990852 is about 5384.3153696640. The cubic root of 28990852 is about 307.1993739363.

The spelling of 28990852 in words is "twenty-eight million, nine hundred ninety thousand, eight hundred fifty-two".