747706745 has 16 divisors (see below), whose sum is σ = 912909312. Its totient is φ = 587802240.

The previous prime is 747706741. The next prime is 747706769. The reversal of 747706745 is 547607747.

It is not a de Polignac number, because 747706745 - 2² = 747706741 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 747706745.

It is not an unprimeable number, because it can be changed into a prime (747706741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74549 + ... + 83981.

It is an arithmetic number, because the mean of its divisors is an integer number (57056832).

Almost surely, 2^747706745 is an apocalyptic number.

It is an amenable number.

747706745 is a deficient number, since it is larger than the sum of its proper divisors (165202567).

747706745 is a wasteful number, since it uses less digits than its factorization.

747706745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9712.

The product of its (nonzero) digits is 1152480, while the sum is 47.

The square root of 747706745 is about 27344.2269044126. The cubic root of 747706745 is about 907.6333241169.

The spelling of 747706745 in words is "seven hundred forty-seven million, seven hundred six thousand, seven hundred forty-five".