75477828 has 24 divisors (see below), whose sum is σ = 178597440. Its totient is φ = 24804640.

The previous prime is 75477827. The next prime is 75477833. The reversal of 75477828 is 82877457.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (75477827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43443 + ... + 45146.

It is an arithmetic number, because the mean of its divisors is an integer number (7441560).

Almost surely, 2^75477828 is an apocalyptic number.

It is an amenable number.

75477828 is an abundant number, since it is smaller than the sum of its proper divisors (103119612).

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

75477828 is a wasteful number, since it uses less digits than its factorization.

75477828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88667 (or 88665 counting only the distinct ones).

The product of its digits is 878080, while the sum is 48.

The square root of 75477828 is about 8687.7976495773. The cubic root of 75477828 is about 422.6100279479.

The spelling of 75477828 in words is "seventy-five million, four hundred seventy-seven thousand, eight hundred twenty-eight".