28750826 has 16 divisors (see below), whose sum is σ = 47943168. Its totient is φ = 12841200.

The previous prime is 28750823. The next prime is 28750873. The reversal of 28750826 is 62805782.

It is a self number, because there is not a number n which added to its sum of digits gives 28750826.

It is not an unprimeable number, because it can be changed into a prime (28750823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17030 + ... + 18641.

It is an arithmetic number, because the mean of its divisors is an integer number (2996448).

Almost surely, 2^28750826 is an apocalyptic number.

28750826 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28750826 is a deficient number, since it is larger than the sum of its proper divisors (19192342).

28750826 is a wasteful number, since it uses less digits than its factorization.

28750826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35717.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 28750826 is about 5361.9796717257. The cubic root of 28750826 is about 306.3492175540.

The spelling of 28750826 in words is "twenty-eight million, seven hundred fifty thousand, eight hundred twenty-six".