747535880 has 128 divisors (see below), whose sum is σ = 2160345600. Its totient is φ = 226271232.

The previous prime is 747535879. The next prime is 747535889. The reversal of 747535880 is 88535747.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (747535889) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79256 + ... + 88184.

It is an arithmetic number, because the mean of its divisors is an integer number (16877700).

Almost surely, 2^747535880 is an apocalyptic number.

747535880 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 747535880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1080172800).

747535880 is an abundant number, since it is smaller than the sum of its proper divisors (1412809720).

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

747535880 is a wasteful number, since it uses less digits than its factorization.

747535880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8983 (or 8979 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 47.

The square root of 747535880 is about 27341.1023918203. The cubic root of 747535880 is about 907.5641817767.

The spelling of 747535880 in words is "seven hundred forty-seven million, five hundred thirty-five thousand, eight hundred eighty".