716218249 has 4 divisors (see below), whose sum is σ = 740915460. Its totient is φ = 691521040.

The previous prime is 716218199. The next prime is 716218253. The reversal of 716218249 is 942812617.

716218249 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: 942812617 = 18301 ⋅51517.

It can be written as a sum of positive squares in 2 ways, for example, as 429525625 + 286692624 = 20725^2 + 16932^2 .

It is a cyclic number.

It is not a de Polignac number, because 716218249 - 2⁷ = 716218121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (716218259) 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, 12348562 + ... + 12348619.

It is an arithmetic number, because the mean of its divisors is an integer number (185228865).

Almost surely, 2^716218249 is an apocalyptic number.

It is an amenable number.

716218249 is a deficient number, since it is larger than the sum of its proper divisors (24697211).

716218249 is a wasteful number, since it uses less digits than its factorization.

716218249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24697210.

The product of its digits is 48384, while the sum is 40.

The square root of 716218249 is about 26762.2541838314. The cubic root of 716218249 is about 894.7089756325.

The spelling of 716218249 in words is "seven hundred sixteen million, two hundred eighteen thousand, two hundred forty-nine".