716151217 has 4 divisors (see below), whose sum is σ = 716204916. Its totient is φ = 716097520.

The previous prime is 716151209. The next prime is 716151239. The reversal of 716151217 is 712151617.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 712151617 = 37 ⋅19247341.

It can be written as a sum of positive squares in 2 ways, for example, as 667653921 + 48497296 = 25839^2 + 6964^2 .

It is a cyclic number.

It is not a de Polignac number, because 716151217 - 2³ = 716151209 is a prime.

It is a super-2 number, since 2×716151217² = 1025745131221162178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (716151817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10167 + ... + 39187.

It is an arithmetic number, because the mean of its divisors is an integer number (179051229).

Almost surely, 2^716151217 is an apocalyptic number.

It is an amenable number.

716151217 is a deficient number, since it is larger than the sum of its proper divisors (53699).

716151217 is a wasteful number, since it uses less digits than its factorization.

716151217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53698.

The product of its digits is 2940, while the sum is 31.

The square root of 716151217 is about 26761.0017936549. The cubic root of 716151217 is about 894.6810623518.

The spelling of 716151217 in words is "seven hundred sixteen million, one hundred fifty-one thousand, two hundred seventeen".