10721719 has 4 divisors (see below), whose sum is σ = 11286040. Its totient is φ = 10157400.

The previous prime is 10721653. The next prime is 10721723. The reversal of 10721719 is 91712701.

10721719 is digitally balanced in base 3, 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 is not a de Polignac number, because 10721719 - 2¹¹ = 10719671 is a prime.

It is a super-2 number, since 2×10721719² = 229910516629922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10721759) 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, 282132 + ... + 282169.

It is an arithmetic number, because the mean of its divisors is an integer number (2821510).

Almost surely, 2^10721719 is an apocalyptic number.

10721719 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

10721719 is a deficient number, since it is larger than the sum of its proper divisors (564321).

10721719 is an equidigital number, since it uses as much as digits as its factorization.

10721719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564320.

The product of its (nonzero) digits is 882, while the sum is 28.

The square root of 10721719 is about 3274.4036098197. The cubic root of 10721719 is about 220.5065394337.

The spelling of 10721719 in words is "ten million, seven hundred twenty-one thousand, seven hundred nineteen".