28609602 has 64 divisors (see below), whose sum is σ = 68705280. Its totient is φ = 7769664.

The previous prime is 28609601. The next prime is 28609627. The reversal of 28609602 is 20690682.

It is not an unprimeable number, because it can be changed into a prime (28609601) 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, 100953 + ... + 101235.

It is an arithmetic number, because the mean of its divisors is an integer number (1073520).

Almost surely, 2^28609602 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28609602, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34352640).

28609602 is an abundant number, since it is smaller than the sum of its proper divisors (40095678).

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

28609602 is a wasteful number, since it uses less digits than its factorization.

28609602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 28609602 is about 5348.7944436106. The cubic root of 28609602 is about 305.8467984446.

The spelling of 28609602 in words is "twenty-eight million, six hundred nine thousand, six hundred two".