10721316 has 24 divisors (see below), whose sum is σ = 25097184. Its totient is φ = 3562240.

The previous prime is 10721309. The next prime is 10721323. The reversal of 10721316 is 61312701.

It is an interprime number because it is at equal distance from previous prime (10721309) and next prime (10721323).

It is a super-2 number, since 2×10721316² = 229893233543712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10721292 and 10721301.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2971 + ... + 5501.

It is an arithmetic number, because the mean of its divisors is an integer number (1045716).

Almost surely, 2^10721316 is an apocalyptic number.

It is an amenable number.

10721316 is an abundant number, since it is smaller than the sum of its proper divisors (14375868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10721316 is a wasteful number, since it uses less digits than its factorization.

10721316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2891 (or 2889 counting only the distinct ones).

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

The square root of 10721316 is about 3274.3420713175. The cubic root of 10721316 is about 220.5037766539.

The spelling of 10721316 in words is "ten million, seven hundred twenty-one thousand, three hundred sixteen".