747730213 has 2 divisors, whose sum is σ = 747730214. Its totient is φ = 747730212.

The previous prime is 747730211. The next prime is 747730267. The reversal of 747730213 is 312037747.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 544895649 + 202834564 = 23343^2 + 14242^2 .

It is a cyclic number.

It is not a de Polignac number, because 747730213 - 2¹ = 747730211 is a prime.

Together with 747730211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (747730211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373865106 + 373865107.

It is an arithmetic number, because the mean of its divisors is an integer number (373865107).

Almost surely, 2^747730213 is an apocalyptic number.

It is an amenable number.

747730213 is a deficient number, since it is larger than the sum of its proper divisors (1).

747730213 is an equidigital number, since it uses as much as digits as its factorization.

747730213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24696, while the sum is 34.

The square root of 747730213 is about 27344.6560227040. The cubic root of 747730213 is about 907.6428198701.

The spelling of 747730213 in words is "seven hundred forty-seven million, seven hundred thirty thousand, two hundred thirteen".