712078243 has 4 divisors (see below), whose sum is σ = 718991728. Its totient is φ = 705164760.

The previous prime is 712078223. The next prime is 712078249. The reversal of 712078243 is 342870217.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342870217 = 47 ⋅7295111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-712078243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 712078199 and 712078208.

It is not an unprimeable number, because it can be changed into a prime (712078249) 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, 3456588 + ... + 3456793.

It is an arithmetic number, because the mean of its divisors is an integer number (179747932).

Almost surely, 2^712078243 is an apocalyptic number.

712078243 is a deficient number, since it is larger than the sum of its proper divisors (6913485).

712078243 is a wasteful number, since it uses less digits than its factorization.

712078243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6913484.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 712078243 is about 26684.7942281742. The cubic root of 712078243 is about 892.9817271932.

The spelling of 712078243 in words is "seven hundred twelve million, seventy-eight thousand, two hundred forty-three".