10721296 has 20 divisors (see below), whose sum is σ = 21008700. Its totient is φ = 5299712.

The previous prime is 10721287. The next prime is 10721297. The reversal of 10721296 is 69212701.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2768896 + 7952400 = 1664^2 + 2820^2 .

It is a super-2 number, since 2×10721296² = 229892375839232, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (10721297) 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, 2341 + ... + 5188.

It is an arithmetic number, because the mean of its divisors is an integer number (1050435).

Almost surely, 2^10721296 is an apocalyptic number.

10721296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

10721296 is a deficient number, since it is larger than the sum of its proper divisors (10287404).

10721296 is an equidigital number, since it uses as much as digits as its factorization.

10721296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7626 (or 7620 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 10721296 is about 3274.3390172675. The cubic root of 10721296 is about 220.5036395414.

Adding to 10721296 its reverse (69212701), we get a palindrome (79933997).

The spelling of 10721296 in words is "ten million, seven hundred twenty-one thousand, two hundred ninety-six".