28913514 has 64 divisors (see below), whose sum is σ = 69672960. Its totient is φ = 7824960.

The previous prime is 28913491. The next prime is 28913527. The reversal of 28913514 is 41531982.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68797 + ... + 69215.

It is an arithmetic number, because the mean of its divisors is an integer number (1088640).

Almost surely, 2^28913514 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28913514, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34836480).

28913514 is an abundant number, since it is smaller than the sum of its proper divisors (40759446).

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

28913514 is a wasteful number, since it uses less digits than its factorization.

28913514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515.

The product of its digits is 8640, while the sum is 33.

The square root of 28913514 is about 5377.1287877454. The cubic root of 28913514 is about 306.9259619088.

The spelling of 28913514 in words is "twenty-eight million, nine hundred thirteen thousand, five hundred fourteen".