10371721 has 2 divisors, whose sum is σ = 10371722. Its totient is φ = 10371720.

The previous prime is 10371719. The next prime is 10371727. The reversal of 10371721 is 12717301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9853321 + 518400 = 3139^2 + 720^2 .

It is a cyclic number.

It is not a de Polignac number, because 10371721 - 2¹ = 10371719 is a prime.

Together with 10371719, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 10371692 and 10371701.

It is not a weakly prime, because it can be changed into another prime (10371727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5185860 + 5185861.

It is an arithmetic number, because the mean of its divisors is an integer number (5185861).

Almost surely, 2^10371721 is an apocalyptic number.

It is an amenable number.

10371721 is a deficient number, since it is larger than the sum of its proper divisors (1).

10371721 is an equidigital number, since it uses as much as digits as its factorization.

10371721 is an evil number, because the sum of its binary digits is even.

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

The square root of 10371721 is about 3220.5156419431. The cubic root of 10371721 is about 218.0805540758.

It can be divided in two parts, 103 and 71721, that added together give a square (71824 = 268²).

The spelling of 10371721 in words is "ten million, three hundred seventy-one thousand, seven hundred twenty-one".