75499984 has 120 divisors (see below), whose sum is σ = 183202560. Its totient is φ = 29981952.

The previous prime is 75499979. The next prime is 75499997. The reversal of 75499984 is 48999457.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 955657 + ... + 955735.

It is an arithmetic number, because the mean of its divisors is an integer number (1526688).

Almost surely, 2^75499984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75499984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91601280).

75499984 is an abundant number, since it is smaller than the sum of its proper divisors (107702576).

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

75499984 is a wasteful number, since it uses less digits than its factorization.

75499984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177 (or 164 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 55.

The square root of 75499984 is about 8689.0726777948. The cubic root of 75499984 is about 422.6513753298.

The spelling of 75499984 in words is "seventy-five million, four hundred ninety-nine thousand, nine hundred eighty-four".