10701721 has 4 divisors (see below), whose sum is σ = 11331252. Its totient is φ = 10072192.

The previous prime is 10701701. The next prime is 10701751. The reversal of 10701721 is 12710701.

10701721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7590025 + 3111696 = 2755^2 + 1764^2 .

It is a cyclic number.

It is not a de Polignac number, because 10701721 - 2⁵ = 10701689 is a prime.

It is a super-2 number, since 2×10701721² = 229053664723682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10701701) 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, 314740 + ... + 314773.

It is an arithmetic number, because the mean of its divisors is an integer number (2832813).

Almost surely, 2^10701721 is an apocalyptic number.

It is an amenable number.

10701721 is a deficient number, since it is larger than the sum of its proper divisors (629531).

10701721 is an equidigital number, since it uses as much as digits as its factorization.

10701721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629530.

The product of its (nonzero) digits is 98, while the sum is 19.

The square root of 10701721 is about 3271.3484987081. The cubic root of 10701721 is about 220.3693588737.

The spelling of 10701721 in words is "ten million, seven hundred one thousand, seven hundred twenty-one".