712137669 has 4 divisors (see below), whose sum is σ = 949516896. Its totient is φ = 474758444.

The previous prime is 712137653. The next prime is 712137677. The reversal of 712137669 is 966731217.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 966731217 = 3 ⋅322243739.

It is a cyclic number.

It is not a de Polignac number, because 712137669 - 2⁴ = 712137653 is a prime.

It is a super-2 number, since 2×712137669² = 1014280119217507122, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 712137669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712137469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118689609 + ... + 118689614.

It is an arithmetic number, because the mean of its divisors is an integer number (237379224).

Almost surely, 2^712137669 is an apocalyptic number.

It is an amenable number.

712137669 is a deficient number, since it is larger than the sum of its proper divisors (237379227).

712137669 is a wasteful number, since it uses less digits than its factorization.

712137669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237379226.

The product of its digits is 95256, while the sum is 42.

The square root of 712137669 is about 26685.9076855182. The cubic root of 712137669 is about 893.0065675608.

The spelling of 712137669 in words is "seven hundred twelve million, one hundred thirty-seven thousand, six hundred sixty-nine".