10716921 has 16 divisors (see below), whose sum is σ = 16425600. Its totient is φ = 6897744.

The previous prime is 10716913. The next prime is 10716941. The reversal of 10716921 is 12961701.

It is not a de Polignac number, because 10716921 - 2³ = 10716913 is a prime.

It is a super-2 number, since 2×10716921² = 229704791440482, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (10716941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6061 + ... + 7626.

It is an arithmetic number, because the mean of its divisors is an integer number (1026600).

Almost surely, 2^10716921 is an apocalyptic number.

It is an amenable number.

10716921 is a deficient number, since it is larger than the sum of its proper divisors (5708679).

10716921 is a wasteful number, since it uses less digits than its factorization.

10716921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13725 (or 13719 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The square root of 10716921 is about 3273.6708753325. The cubic root of 10716921 is about 220.4736420898.

The spelling of 10716921 in words is "ten million, seven hundred sixteen thousand, nine hundred twenty-one".