712871993 has 4 divisors (see below), whose sum is σ = 713070480. Its totient is φ = 712673508.

The previous prime is 712871989. The next prime is 712872019. The reversal of 712871993 is 399178217.

712871993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 399178217 = 521 ⋅766177.

It is a cyclic number.

It is not a de Polignac number, because 712871993 - 2² = 712871989 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (712871903) 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, 93755 + ... + 101072.

It is an arithmetic number, because the mean of its divisors is an integer number (178267620).

Almost surely, 2^712871993 is an apocalyptic number.

It is an amenable number.

712871993 is a deficient number, since it is larger than the sum of its proper divisors (198487).

712871993 is a wasteful number, since it uses less digits than its factorization.

712871993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198486.

The product of its digits is 190512, while the sum is 47.

The square root of 712871993 is about 26699.6627881327. The cubic root of 712871993 is about 893.3134047156.

The spelling of 712871993 in words is "seven hundred twelve million, eight hundred seventy-one thousand, nine hundred ninety-three".