747136 has 32 divisors (see below), whose sum is σ = 1606500. Its totient is φ = 344064.

The previous prime is 747113. The next prime is 747139. The reversal of 747136 is 631747.

It can be written as a sum of positive squares in 2 ways, for example, as 732736 + 14400 = 856^2 + 120^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (747139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1440 + ... + 1888.

2⁷⁴⁷¹³⁶ 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 747136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (803250).

747136 is an abundant number, since it is smaller than the sum of its proper divisors (859364).

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

747136 is a wasteful number, since it uses less digits than its factorization.

747136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476 (or 464 counting only the distinct ones).

The product of its digits is 3528, while the sum is 28.

The square root of 747136 is about 864.3702910212. The cubic root of 747136 is about 90.7402324888.

The spelling of 747136 in words is "seven hundred forty-seven thousand, one hundred thirty-six".