75299712 has 64 divisors (see below), whose sum is σ = 201450000. Its totient is φ = 24920064.

The previous prime is 75299701. The next prime is 75299737. The reversal of 75299712 is 21799257.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59664 + ... + 60912.

Almost surely, 2^75299712 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 75299712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100725000).

75299712 is an abundant number, since it is smaller than the sum of its proper divisors (126150288).

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

75299712 is a wasteful number, since it uses less digits than its factorization.

75299712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423 (or 1411 counting only the distinct ones).

The product of its digits is 79380, while the sum is 42.

The square root of 75299712 is about 8677.5406654190. The cubic root of 75299712 is about 422.2773346752.

The spelling of 75299712 in words is "seventy-five million, two hundred ninety-nine thousand, seven hundred twelve".