712761993 has 6 divisors (see below), whose sum is σ = 1029545114. Its totient is φ = 475174656.

The previous prime is 712761979. The next prime is 712761997. The reversal of 712761993 is 399167217.

712761993 is a `hidden beast` number, since 7 + 1 + 27 + 619 + 9 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 647346249 + 65415744 = 25443^2 + 8088^2 .

It is a de Polignac number, because none of the positive numbers 2^k-712761993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (712761997) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39597880 + ... + 39597897.

Almost surely, 2^712761993 is an apocalyptic number.

It is an amenable number.

712761993 is a deficient number, since it is larger than the sum of its proper divisors (316783121).

712761993 is a wasteful number, since it uses less digits than its factorization.

712761993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79195783 (or 79195780 counting only the distinct ones).

The product of its digits is 142884, while the sum is 45.

The square root of 712761993 is about 26697.6027575511. The cubic root of 712761993 is about 893.2674546571.

The spelling of 712761993 in words is "seven hundred twelve million, seven hundred sixty-one thousand, nine hundred ninety-three".