747211745 has 8 divisors (see below), whose sum is σ = 1024747584. Its totient is φ = 512373744.

The previous prime is 747211697. The next prime is 747211789. The reversal of 747211745 is 547112747.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 747211745 - 2⁶ = 747211681 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 747211699 and 747211708.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10674419 + ... + 10674488.

It is an arithmetic number, because the mean of its divisors is an integer number (128093448).

Almost surely, 2^747211745 is an apocalyptic number.

It is an amenable number.

747211745 is a deficient number, since it is larger than the sum of its proper divisors (277535839).

747211745 is a wasteful number, since it uses less digits than its factorization.

747211745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21348919.

The product of its digits is 54880, while the sum is 38.

The square root of 747211745 is about 27335.1741351688. The cubic root of 747211745 is about 907.4329881433.

The spelling of 747211745 in words is "seven hundred forty-seven million, two hundred eleven thousand, seven hundred forty-five".