747820672 has 32 divisors (see below), whose sum is σ = 1517922180. Its totient is φ = 366852096.

The previous prime is 747820609. The next prime is 747820681. The reversal of 747820672 is 276028747.

It can be written as a sum of positive squares in 2 ways, for example, as 577152576 + 170668096 = 24024^2 + 13064^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48333 + ... + 61900.

Almost surely, 2^747820672 is an apocalyptic number.

It is an amenable number.

747820672 is an abundant number, since it is smaller than the sum of its proper divisors (770101508).

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

747820672 is a wasteful number, since it uses less digits than its factorization.

747820672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110300 (or 110288 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 43.

The square root of 747820672 is about 27346.3100253032. The cubic root of 747820672 is about 907.6794200367.

The spelling of 747820672 in words is "seven hundred forty-seven million, eight hundred twenty thousand, six hundred seventy-two".