28207674 has 48 divisors (see below), whose sum is σ = 67335840. Its totient is φ = 8462880.

The previous prime is 28207651. The next prime is 28207693. The reversal of 28207674 is 47670282.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20929 + ... + 22235.

It is an arithmetic number, because the mean of its divisors is an integer number (1402830).

Almost surely, 2^28207674 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28207674, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33667920).

28207674 is an abundant number, since it is smaller than the sum of its proper divisors (39128166).

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

28207674 is a wasteful number, since it uses less digits than its factorization.

28207674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435 (or 1432 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 28207674 is about 5311.0897186924. The cubic root of 28207674 is about 304.4077875227.

It can be divided in two parts, 28 and 207674, that added together give a palindrome (207702).

The spelling of 28207674 in words is "twenty-eight million, two hundred seven thousand, six hundred seventy-four".