716123645 has 4 divisors (see below), whose sum is σ = 859348380. Its totient is φ = 572898912.

The previous prime is 716123609. The next prime is 716123729. The reversal of 716123645 is 546321617.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 546321617 = 18583 ⋅29399.

It can be written as a sum of positive squares in 2 ways, for example, as 560647684 + 155475961 = 23678^2 + 12469^2 .

It is a cyclic number.

It is not a de Polignac number, because 716123645 - 2¹⁰ = 716122621 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71612360 + ... + 71612369.

It is an arithmetic number, because the mean of its divisors is an integer number (214837095).

Almost surely, 2^716123645 is an apocalyptic number.

It is an amenable number.

716123645 is a deficient number, since it is larger than the sum of its proper divisors (143224735).

716123645 is a wasteful number, since it uses less digits than its factorization.

716123645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143224734.

The product of its digits is 30240, while the sum is 35.

The square root of 716123645 is about 26760.4866360834. The cubic root of 716123645 is about 894.6695803899.

It can be divided in two parts, 71612 and 3645, that added together give a palindrome (75257).

The spelling of 716123645 in words is "seven hundred sixteen million, one hundred twenty-three thousand, six hundred forty-five".