75861228 has 48 divisors (see below), whose sum is σ = 180714240. Its totient is φ = 24763200.

The previous prime is 75861217. The next prime is 75861239. The reversal of 75861228 is 82216857.

It is an interprime number because it is at equal distance from previous prime (75861217) and next prime (75861239).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229023 + ... + 229353.

It is an arithmetic number, because the mean of its divisors is an integer number (3764880).

Almost surely, 2^75861228 is an apocalyptic number.

It is an amenable number.

75861228 is an abundant number, since it is smaller than the sum of its proper divisors (104853012).

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

75861228 is a wasteful number, since it uses less digits than its factorization.

75861228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678 (or 676 counting only the distinct ones).

The product of its digits is 53760, while the sum is 39.

The square root of 75861228 is about 8709.8351304718. The cubic root of 75861228 is about 423.3243883175.

The spelling of 75861228 in words is "seventy-five million, eight hundred sixty-one thousand, two hundred twenty-eight".