75748736 has 64 divisors (see below), whose sum is σ = 182645280. Its totient is φ = 30547968.

The previous prime is 75748733. The next prime is 75748741. The reversal of 75748736 is 63784757.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75748733) 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, 12746 + ... + 17718.

Almost surely, 2^75748736 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 75748736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91322640).

75748736 is an abundant number, since it is smaller than the sum of its proper divisors (106896544).

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

75748736 is a wasteful number, since it uses less digits than its factorization.

75748736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5011 (or 4999 counting only the distinct ones).

The product of its digits is 987840, while the sum is 47.

The square root of 75748736 is about 8703.3749775590. The cubic root of 75748736 is about 423.1150404241.

The spelling of 75748736 in words is "seventy-five million, seven hundred forty-eight thousand, seven hundred thirty-six".