10727721 has 24 divisors (see below), whose sum is σ = 16240224. Its totient is φ = 7076160.

The previous prime is 10727719. The next prime is 10727741. The reversal of 10727721 is 12772701.

It is not a de Polignac number, because 10727721 - 2¹ = 10727719 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10727711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31665 + ... + 32001.

It is an arithmetic number, because the mean of its divisors is an integer number (676676).

Almost surely, 2^10727721 is an apocalyptic number.

It is an amenable number.

10727721 is a deficient number, since it is larger than the sum of its proper divisors (5512503).

10727721 is an equidigital number, since it uses as much as digits as its factorization.

10727721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483 (or 471 counting only the distinct ones).

The product of its (nonzero) digits is 1372, while the sum is 27.

The square root of 10727721 is about 3275.3199843679. The cubic root of 10727721 is about 220.5476781531.

The spelling of 10727721 in words is "ten million, seven hundred twenty-seven thousand, seven hundred twenty-one".