747791616 has 216 divisors, whose sum is σ = 2359675360. Its totient is φ = 208834560.

The previous prime is 747791609. The next prime is 747791647. The reversal of 747791616 is 616197747.

It is a Harshad number since it is a multiple of its sum of digits (48).

Its product of digits (444528) is a multiple of the sum of its prime divisors (648).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1207755 + ... + 1208373.

Almost surely, 2^747791616 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 747791616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1179837680).

747791616 is an abundant number, since it is smaller than the sum of its proper divisors (1611883744).

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

747791616 is a wasteful number, since it uses less digits than its factorization.

747791616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673 (or 648 counting only the distinct ones).

The product of its digits is 444528, while the sum is 48.

The square root of 747791616 is about 27345.7787601670. The cubic root of 747791616 is about 907.6676641546.

The spelling of 747791616 in words is "seven hundred forty-seven million, seven hundred ninety-one thousand, six hundred sixteen".