10021719 has 8 divisors (see below), whose sum is σ = 13451392. Its totient is φ = 6636600.

The previous prime is 10021699. The next prime is 10021723. The reversal of 10021719 is 91712001.

10021719 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10021719 - 2¹¹ = 10019671 is a prime.

It is a super-2 number, since 2×10021719² = 200869703429922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10021695 and 10021704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10609 + ... + 11514.

It is an arithmetic number, because the mean of its divisors is an integer number (1681424).

Almost surely, 2^10021719 is an apocalyptic number.

10021719 is a deficient number, since it is larger than the sum of its proper divisors (3429673).

10021719 is a wasteful number, since it uses less digits than its factorization.

10021719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22277.

The product of its (nonzero) digits is 126, while the sum is 21.

The square root of 10021719 is about 3165.7098729985. The cubic root of 10021719 is about 215.5993301095.

The spelling of 10021719 in words is "ten million, twenty-one thousand, seven hundred nineteen".