712172213 has 2 divisors, whose sum is σ = 712172214. Its totient is φ = 712172212.

The previous prime is 712172203. The next prime is 712172221. The reversal of 712172213 is 312271217.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 624150289 + 88021924 = 24983^2 + 9382^2 .

It is a cyclic number.

It is not a de Polignac number, because 712172213 - 2²² = 707977909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (712172203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 356086106 + 356086107.

It is an arithmetic number, because the mean of its divisors is an integer number (356086107).

Almost surely, 2^712172213 is an apocalyptic number.

It is an amenable number.

712172213 is a deficient number, since it is larger than the sum of its proper divisors (1).

712172213 is an equidigital number, since it uses as much as digits as its factorization.

712172213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1176, while the sum is 26.

The square root of 712172213 is about 26686.5549106662. The cubic root of 712172213 is about 893.0210064919.

The spelling of 712172213 in words is "seven hundred twelve million, one hundred seventy-two thousand, two hundred thirteen".