28874610 has 64 divisors (see below), whose sum is σ = 77500800. Its totient is φ = 7649856.

The previous prime is 28874603. The next prime is 28874611. The reversal of 28874610 is 1647882.

It is not an unprimeable number, because it can be changed into a prime (28874611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61597 + ... + 62063.

It is an arithmetic number, because the mean of its divisors is an integer number (1210950).

Almost surely, 2^28874610 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28874610, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38750400).

28874610 is an abundant number, since it is smaller than the sum of its proper divisors (48626190).

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

28874610 is a wasteful number, since it uses less digits than its factorization.

28874610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712 (or 706 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 28874610 is about 5373.5100260444. The cubic root of 28874610 is about 306.7882407595.

The spelling of 28874610 in words is "twenty-eight million, eight hundred seventy-four thousand, six hundred ten".