10027721 has 8 divisors (see below), whose sum is σ = 10965024. Its totient is φ = 9094720.

The previous prime is 10027709. The next prime is 10027727. The reversal of 10027721 is 12772001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10027721 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10027693 and 10027702.

It is not an unprimeable number, because it can be changed into a prime (10027727) 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, 5681 + ... + 7233.

It is an arithmetic number, because the mean of its divisors is an integer number (1370628).

Almost surely, 2^10027721 is an apocalyptic number.

10027721 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10027721 is a deficient number, since it is larger than the sum of its proper divisors (937303).

10027721 is a wasteful number, since it uses less digits than its factorization.

10027721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2151.

The product of its (nonzero) digits is 196, while the sum is 20.

The square root of 10027721 is about 3166.6577017417. The cubic root of 10027721 is about 215.6423622790.

Adding to 10027721 its reverse (12772001), we get a palindrome (22799722).

The spelling of 10027721 in words is "ten million, twenty-seven thousand, seven hundred twenty-one".