712719394 has 4 divisors (see below), whose sum is σ = 1069079094. Its totient is φ = 356359696.

The previous prime is 712719389. The next prime is 712719409. The reversal of 712719394 is 493917217.

It is a happy number.

712719394 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 an emirpimes, since its reverse is a distinct semiprime: 493917217 = 19 ⋅25995643.

It can be written as a sum of positive squares in only one way, i.e., 586269369 + 126450025 = 24213^2 + 11245^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 712719394.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 178179847 + ... + 178179850.

Almost surely, 2^712719394 is an apocalyptic number.

712719394 is a deficient number, since it is larger than the sum of its proper divisors (356359700).

712719394 is a wasteful number, since it uses less digits than its factorization.

712719394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356359699.

The product of its digits is 95256, while the sum is 43.

The square root of 712719394 is about 26696.8049399174. The cubic root of 712719394 is about 893.2496586005.

The spelling of 712719394 in words is "seven hundred twelve million, seven hundred nineteen thousand, three hundred ninety-four".