28964850 has 48 divisors (see below), whose sum is σ = 74161920. Its totient is φ = 7473600.

The previous prime is 28964849. The next prime is 28964851. The reversal of 28964850 is 5846982.

It is an interprime number because it is at equal distance from previous prime (28964849) and next prime (28964851).

It is not an unprimeable number, because it can be changed into a prime (28964851) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1536 + ... + 7764.

It is an arithmetic number, because the mean of its divisors is an integer number (1545040).

Almost surely, 2^28964850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28964850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37080960).

28964850 is an abundant number, since it is smaller than the sum of its proper divisors (45197070).

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

28964850 is a wasteful number, since it uses less digits than its factorization.

28964850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6275 (or 6270 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 28964850 is about 5381.9002220405. The cubic root of 28964850 is about 307.1075037214.

The spelling of 28964850 in words is "twenty-eight million, nine hundred sixty-four thousand, eight hundred fifty".