28651038 has 16 divisors (see below), whose sum is σ = 61710096. Its totient is φ = 8815680.

The previous prime is 28651013. The next prime is 28651079. The reversal of 28651038 is 83015682.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183583 + ... + 183738.

It is an arithmetic number, because the mean of its divisors is an integer number (3856881).

Almost surely, 2^28651038 is an apocalyptic number.

28651038 is an abundant number, since it is smaller than the sum of its proper divisors (33059058).

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

28651038 is a wasteful number, since it uses less digits than its factorization.

28651038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367339.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 28651038 is about 5352.6664383277. Note that the first 3 decimals coincide. The cubic root of 28651038 is about 305.9943823993.

The spelling of 28651038 in words is "twenty-eight million, six hundred fifty-one thousand, thirty-eight".