10712721 has 16 divisors (see below), whose sum is σ = 14827904. Its totient is φ = 6873984.

The previous prime is 10712717. The next prime is 10712729. The reversal of 10712721 is 12721701.

It is a happy number.

10712721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10712721 - 2² = 10712717 is a prime.

It is a super-2 number, since 2×10712721² = 229524782447682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10712729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10965 + ... + 11901.

It is an arithmetic number, because the mean of its divisors is an integer number (926744).

Almost surely, 2^10712721 is an apocalyptic number.

It is an amenable number.

10712721 is a deficient number, since it is larger than the sum of its proper divisors (4115183).

10712721 is a wasteful number, since it uses less digits than its factorization.

10712721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080.

The product of its (nonzero) digits is 196, while the sum is 21.

The square root of 10712721 is about 3273.0293307577. The cubic root of 10712721 is about 220.4448368546. Note that the first 3 decimals are identical.

The spelling of 10712721 in words is "ten million, seven hundred twelve thousand, seven hundred twenty-one".