10716321 has 32 divisors (see below), whose sum is σ = 18597888. Its totient is φ = 5322240.

The previous prime is 10716313. The next prime is 10716353. The reversal of 10716321 is 12361701.

It is not a de Polignac number, because 10716321 - 2³ = 10716313 is a prime.

It is a super-2 number, since 2×10716321² = 229679071550082, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (10716301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4305 + ... + 6321.

It is an arithmetic number, because the mean of its divisors is an integer number (581184).

Almost surely, 2^10716321 is an apocalyptic number.

10716321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10716321 is a deficient number, since it is larger than the sum of its proper divisors (7881567).

10716321 is a wasteful number, since it uses less digits than its factorization.

10716321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2061.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 10716321 is about 3273.5792338051. The cubic root of 10716321 is about 220.4695275170.

The spelling of 10716321 in words is "ten million, seven hundred sixteen thousand, three hundred twenty-one".