747668080 has 20 divisors (see below), whose sum is σ = 1738328472. Its totient is φ = 299067200.

The previous prime is 747668071. The next prime is 747668083. The reversal of 747668080 is 80866747.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 747668080.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747668083) 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, 4672846 + ... + 4673005.

Almost surely, 2^747668080 is an apocalyptic number.

It is an amenable number.

747668080 is an abundant number, since it is smaller than the sum of its proper divisors (990660392).

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

747668080 is a wasteful number, since it uses less digits than its factorization.

747668080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9345864 (or 9345858 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 46.

The square root of 747668080 is about 27343.5198904603. The cubic root of 747668080 is about 907.6176788355.

The spelling of 747668080 in words is "seven hundred forty-seven million, six hundred sixty-eight thousand, eighty".