28166952 has 32 divisors (see below), whose sum is σ = 76819680. Its totient is φ = 8535360.

The previous prime is 28166947. The next prime is 28166989. The reversal of 28166952 is 25966182.

It is a self number, because there is not a number n which added to its sum of digits gives 28166952.

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 7 ways as a sum of consecutive naturals, for example, 53083 + ... + 53610.

It is an arithmetic number, because the mean of its divisors is an integer number (2400615).

Almost surely, 2^28166952 is an apocalyptic number.

28166952 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28166952 is an abundant number, since it is smaller than the sum of its proper divisors (48652728).

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

28166952 is a wasteful number, since it uses less digits than its factorization.

28166952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106713 (or 106709 counting only the distinct ones).

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

The square root of 28166952 is about 5307.2546575419. The cubic root of 28166952 is about 304.2612309046.

The spelling of 28166952 in words is "twenty-eight million, one hundred sixty-six thousand, nine hundred fifty-two".