734689213 has 2 divisors, whose sum is σ = 734689214. Its totient is φ = 734689212.

The previous prime is 734689171. The next prime is 734689217. The reversal of 734689213 is 312986437.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 395134884 + 339554329 = 19878^2 + 18427^2 .

It is a cyclic number.

It is not a de Polignac number, because 734689213 - 2²¹ = 732592061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 734689213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (734689217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 367344606 + 367344607.

It is an arithmetic number, because the mean of its divisors is an integer number (367344607).

Almost surely, 2^734689213 is an apocalyptic number.

It is an amenable number.

734689213 is a deficient number, since it is larger than the sum of its proper divisors (1).

734689213 is an equidigital number, since it uses as much as digits as its factorization.

734689213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 43.

The square root of 734689213 is about 27105.1510418223. The cubic root of 734689213 is about 902.3351757377.

The spelling of 734689213 in words is "seven hundred thirty-four million, six hundred eighty-nine thousand, two hundred thirteen".