10173721 has 8 divisors (see below), whose sum is σ = 10912320. Its totient is φ = 9455472.

The previous prime is 10173719. The next prime is 10173727. The reversal of 10173721 is 12737101.

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

It is a cyclic number.

It is not a de Polignac number, because 10173721 - 2¹ = 10173719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10173692 and 10173701.

It is not an unprimeable number, because it can be changed into a prime (10173727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4045 + ... + 6058.

It is an arithmetic number, because the mean of its divisors is an integer number (1364040).

Almost surely, 2^10173721 is an apocalyptic number.

It is an amenable number.

10173721 is a deficient number, since it is larger than the sum of its proper divisors (738599).

10173721 is a wasteful number, since it uses less digits than its factorization.

10173721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10175.

The product of its (nonzero) digits is 294, while the sum is 22.

The square root of 10173721 is about 3189.6270941914. The cubic root of 10173721 is about 216.6838821298.

The spelling of 10173721 in words is "ten million, one hundred seventy-three thousand, seven hundred twenty-one".