10415721 has 8 divisors (see below), whose sum is σ = 14335744. Its totient is φ = 6719760.

The previous prime is 10415693. The next prime is 10415723. The reversal of 10415721 is 12751401.

It is a happy number.

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

It is not a de Polignac number, because 10415721 - 2¹⁷ = 10284649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10415723) 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, 55906 + ... + 56091.

It is an arithmetic number, because the mean of its divisors is an integer number (1791968).

Almost surely, 2^10415721 is an apocalyptic number.

It is an amenable number.

10415721 is a deficient number, since it is larger than the sum of its proper divisors (3920023).

10415721 is a wasteful number, since it uses less digits than its factorization.

10415721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112031.

The product of its (nonzero) digits is 280, while the sum is 21.

The square root of 10415721 is about 3227.3396164643. The cubic root of 10415721 is about 218.3885070567.

The spelling of 10415721 in words is "ten million, four hundred fifteen thousand, seven hundred twenty-one".