747117378 has 128 divisors (see below), whose sum is σ = 1946419200. Its totient is φ = 208039104.

The previous prime is 747117367. The next prime is 747117383. The reversal of 747117378 is 873711747.

747117378 is a `hidden beast` number, since 7 + 471 + 173 + 7 + 8 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3792376 + ... + 3792572.

It is an arithmetic number, because the mean of its divisors is an integer number (15206400).

Almost surely, 2^747117378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 747117378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (973209600).

747117378 is an abundant number, since it is smaller than the sum of its proper divisors (1199301822).

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

747117378 is a wasteful number, since it uses less digits than its factorization.

747117378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421 (or 415 counting only the distinct ones).

The product of its digits is 230496, while the sum is 45.

The square root of 747117378 is about 27333.4479713043. The cubic root of 747117378 is about 907.3947859717.

The spelling of 747117378 in words is "seven hundred forty-seven million, one hundred seventeen thousand, three hundred seventy-eight".