716623 has 4 divisors (see below), whose sum is σ = 754360. Its totient is φ = 678888.

The previous prime is 716621. The next prime is 716629. The reversal of 716623 is 326617.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 716623 - 2¹ = 716621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 716623.

It is not an unprimeable number, because it can be changed into a prime (716621) 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, 18840 + ... + 18877.

It is an arithmetic number, because the mean of its divisors is an integer number (188590).

2⁷¹⁶⁶²³ is an apocalyptic number.

716623 is a deficient number, since it is larger than the sum of its proper divisors (37737).

716623 is a wasteful number, since it uses less digits than its factorization.

716623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37736.

The product of its digits is 1512, while the sum is 25.

The square root of 716623 is about 846.5358822873. The cubic root of 716623 is about 89.4877483932.

The spelling of 716623 in words is "seven hundred sixteen thousand, six hundred twenty-three".