75399936 has 72 divisors (see below), whose sum is σ = 207212544. Its totient is φ = 24314880.

The previous prime is 75399931. The next prime is 75399949. The reversal of 75399936 is 63999357.

It is not an unprimeable number, because it can be changed into a prime (75399931) 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, 22225 + ... + 25391.

It is an arithmetic number, because the mean of its divisors is an integer number (2877952).

Almost surely, 2^75399936 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 75399936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103606272).

75399936 is an abundant number, since it is smaller than the sum of its proper divisors (131812608).

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

75399936 is a wasteful number, since it uses less digits than its factorization.

75399936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3217 (or 3203 counting only the distinct ones).

The product of its digits is 1377810, while the sum is 51.

The square root of 75399936 is about 8683.3136532087. The cubic root of 75399936 is about 422.4646021486.

The spelling of 75399936 in words is "seventy-five million, three hundred ninety-nine thousand, nine hundred thirty-six".