28629286 has 32 divisors (see below), whose sum is σ = 50402880. Its totient is φ = 11943936.

The previous prime is 28629277. The next prime is 28629287. The reversal of 28629286 is 68292682.

It is a happy number.

It is a super-3 number, since 3×28629286³ (a number of 23 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28629287) 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 15 ways as a sum of consecutive naturals, for example, 111270 + ... + 111526.

It is an arithmetic number, because the mean of its divisors is an integer number (1575090).

Almost surely, 2^28629286 is an apocalyptic number.

28629286 is a deficient number, since it is larger than the sum of its proper divisors (21773594).

28629286 is a wasteful number, since it uses less digits than its factorization.

28629286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448.

The product of its digits is 165888, while the sum is 43.

The square root of 28629286 is about 5350.6341680216. The cubic root of 28629286 is about 305.9169253460.

The spelling of 28629286 in words is "twenty-eight million, six hundred twenty-nine thousand, two hundred eighty-six".