716331 has 24 divisors (see below), whose sum is σ = 1214784. Its totient is φ = 371280.

The previous prime is 716321. The next prime is 716351. The reversal of 716331 is 133617.

It is not a de Polignac number, because 716331 - 2⁵ = 716299 is a prime.

It is a super-2 number, since 2×716331² = 1026260203122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 716298 and 716307.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 716331.

It is not an unprimeable number, because it can be changed into a prime (716321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1396 + ... + 1838.

It is an arithmetic number, because the mean of its divisors is an integer number (50616).

2⁷¹⁶³³¹ is an apocalyptic number.

716331 is a deficient number, since it is larger than the sum of its proper divisors (498453).

716331 is a wasteful number, since it uses less digits than its factorization.

716331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471 (or 464 counting only the distinct ones).

The product of its digits is 378, while the sum is 21.

The square root of 716331 is about 846.3633971292. The cubic root of 716331 is about 89.4755923165.

Adding to 716331 its reverse (133617), we get a palindrome (849948).

The spelling of 716331 in words is "seven hundred sixteen thousand, three hundred thirty-one".