10729421 has 2 divisors, whose sum is σ = 10729422. Its totient is φ = 10729420.

The previous prime is 10729409. The next prime is 10729457. The reversal of 10729421 is 12492701.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10465225 + 264196 = 3235^2 + 514^2 .

It is a cyclic number.

It is not a de Polignac number, because 10729421 - 2¹⁰ = 10728397 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10729921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5364710 + 5364711.

It is an arithmetic number, because the mean of its divisors is an integer number (5364711).

Almost surely, 2^10729421 is an apocalyptic number.

It is an amenable number.

10729421 is a deficient number, since it is larger than the sum of its proper divisors (1).

10729421 is an equidigital number, since it uses as much as digits as its factorization.

10729421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 10729421 is about 3275.5794907161. The cubic root of 10729421 is about 220.5593274509.

The spelling of 10729421 in words is "ten million, seven hundred twenty-nine thousand, four hundred twenty-one".