716454493 has 4 divisors (see below), whose sum is σ = 723027580. Its totient is φ = 709881408.

The previous prime is 716454491. The next prime is 716454499. The reversal of 716454493 is 394454617.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 394454617 = 139 ⋅2837803.

It can be written as a sum of positive squares in 2 ways, for example, as 173238244 + 543216249 = 13162^2 + 23307^2 .

It is a cyclic number.

It is not a de Polignac number, because 716454493 - 2¹ = 716454491 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (716454491) 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, 3286380 + ... + 3286597.

It is an arithmetic number, because the mean of its divisors is an integer number (180756895).

Almost surely, 2^716454493 is an apocalyptic number.

It is an amenable number.

716454493 is a deficient number, since it is larger than the sum of its proper divisors (6573087).

716454493 is a wasteful number, since it uses less digits than its factorization.

716454493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6573086.

The product of its digits is 362880, while the sum is 43.

The square root of 716454493 is about 26766.6675736820. The cubic root of 716454493 is about 894.8073378248.

The spelling of 716454493 in words is "seven hundred sixteen million, four hundred fifty-four thousand, four hundred ninety-three".