712720807 has 4 divisors (see below), whose sum is σ = 719259640. Its totient is φ = 706181976.

The previous prime is 712720793. The next prime is 712720817. The reversal of 712720807 is 708027217.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 708027217 = 26501 ⋅26717.

It is a cyclic number.

It is not a de Polignac number, because 712720807 - 2²³ = 704332199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712720817) 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, 3269253 + ... + 3269470.

It is an arithmetic number, because the mean of its divisors is an integer number (179814910).

Almost surely, 2^712720807 is an apocalyptic number.

712720807 is a deficient number, since it is larger than the sum of its proper divisors (6538833).

712720807 is a wasteful number, since it uses less digits than its factorization.

712720807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6538832.

The product of its (nonzero) digits is 10976, while the sum is 34.

The square root of 712720807 is about 26696.8314037453. The cubic root of 712720807 is about 893.2502489034.

The spelling of 712720807 in words is "seven hundred twelve million, seven hundred twenty thousand, eight hundred seven".