10627721 has 8 divisors (see below), whose sum is σ = 11493384. Its totient is φ = 9768960.

The previous prime is 10627709. The next prime is 10627739. The reversal of 10627721 is 12772601.

It can be written as a sum of positive squares in 4 ways, for example, as 774400 + 9853321 = 880^2 + 3139^2 .

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 10627721 - 2¹⁰ = 10626697 is a prime.

It is a super-2 number, since 2×10627721² = 225896907307682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10620721) 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, 1751 + ... + 4931.

It is an arithmetic number, because the mean of its divisors is an integer number (1436673).

Almost surely, 2^10627721 is an apocalyptic number.

It is an amenable number.

10627721 is a deficient number, since it is larger than the sum of its proper divisors (865663).

10627721 is a wasteful number, since it uses less digits than its factorization.

10627721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3451.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 10627721 is about 3260.0185582294. The cubic root of 10627721 is about 219.8602487097.

The spelling of 10627721 in words is "ten million, six hundred twenty-seven thousand, seven hundred twenty-one".