747522 has 32 divisors (see below), whose sum is σ = 1689600. Its totient is φ = 244944.

The previous prime is 747521. The next prime is 747529. The reversal of 747522 is 225747.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (747521) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5823 + ... + 5949.

It is an arithmetic number, because the mean of its divisors is an integer number (52800).

2⁷⁴⁷⁵²² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 747522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (844800).

747522 is an abundant number, since it is smaller than the sum of its proper divisors (942078).

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

747522 is a wasteful number, since it uses less digits than its factorization.

747522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247 (or 241 counting only the distinct ones).

The product of its digits is 3920, while the sum is 27.

The square root of 747522 is about 864.5935461244. The cubic root of 747522 is about 90.7558564624.

The spelling of 747522 in words is "seven hundred forty-seven thousand, five hundred twenty-two".