712426217 has 2 divisors, whose sum is σ = 712426218. Its totient is φ = 712426216.

The previous prime is 712426213. The next prime is 712426237. The reversal of 712426217 is 712624217.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 553943296 + 158482921 = 23536^2 + 12589^2 .

It is a cyclic number.

It is not a de Polignac number, because 712426217 - 2² = 712426213 is a prime.

It is a super-2 number, since 2×712426217² = 1015102229337862178, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (712426213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 356213108 + 356213109.

It is an arithmetic number, because the mean of its divisors is an integer number (356213109).

Almost surely, 2^712426217 is an apocalyptic number.

It is an amenable number.

712426217 is a deficient number, since it is larger than the sum of its proper divisors (1).

712426217 is an equidigital number, since it uses as much as digits as its factorization.

712426217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9408, while the sum is 32.

The square root of 712426217 is about 26691.3135120773. The cubic root of 712426217 is about 893.1271624383.

The spelling of 712426217 in words is "seven hundred twelve million, four hundred twenty-six thousand, two hundred seventeen".