712945669 has 2 divisors, whose sum is σ = 712945670. Its totient is φ = 712945668.

The previous prime is 712945663. The next prime is 712945693. The reversal of 712945669 is 966549217.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 472540644 + 240405025 = 21738^2 + 15505^2 .

It is a cyclic number.

It is not a de Polignac number, because 712945669 - 2²¹ = 710848517 is a prime.

It is a super-2 number, since 2×712945669² = 1016583053891715122, which contains 22 as substring.

It is equal to p_36888385 and since 712945669 and 36888385 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (712945663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 356472834 + 356472835.

It is an arithmetic number, because the mean of its divisors is an integer number (356472835).

Almost surely, 2^712945669 is an apocalyptic number.

It is an amenable number.

712945669 is a deficient number, since it is larger than the sum of its proper divisors (1).

712945669 is an equidigital number, since it uses as much as digits as its factorization.

712945669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 49.

The square root of 712945669 is about 26701.0424702857. The cubic root of 712945669 is about 893.3441785861.

The spelling of 712945669 in words is "seven hundred twelve million, nine hundred forty-five thousand, six hundred sixty-nine".