716654391 has 8 divisors (see below), whose sum is σ = 955669104. Its totient is φ = 477704640.

The previous prime is 716654387. The next prime is 716654417. The reversal of 716654391 is 193456617.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 716654391 - 2² = 716654387 is a prime.

It is a super-2 number, since 2×716654391² = 1027187032279161762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (716654381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23161 + ... + 44381.

It is an arithmetic number, because the mean of its divisors is an integer number (119458638).

Almost surely, 2^716654391 is an apocalyptic number.

716654391 is a deficient number, since it is larger than the sum of its proper divisors (239014713).

716654391 is a wasteful number, since it uses less digits than its factorization.

716654391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32481.

The product of its digits is 136080, while the sum is 42.

The square root of 716654391 is about 26770.4013978125. The cubic root of 716654391 is about 894.8905501647.

The spelling of 716654391 in words is "seven hundred sixteen million, six hundred fifty-four thousand, three hundred ninety-one".