28951266 has 8 divisors (see below), whose sum is σ = 57902544. Its totient is φ = 9650420.

The previous prime is 28951259. The next prime is 28951267. The reversal of 28951266 is 66215982.

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

28951266 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (28951267) 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, 2412600 + ... + 2412611.

It is an arithmetic number, because the mean of its divisors is an integer number (7237818).

Almost surely, 2^28951266 is an apocalyptic number.

28951266 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28951266 is a wasteful number, since it uses less digits than its factorization.

28951266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4825216.

The product of its digits is 51840, while the sum is 39.

The square root of 28951266 is about 5380.6380662520. The cubic root of 28951266 is about 307.0594868934.

The spelling of 28951266 in words is "twenty-eight million, nine hundred fifty-one thousand, two hundred sixty-six".