10921739 has 2 divisors, whose sum is σ = 10921740. Its totient is φ = 10921738.

The previous prime is 10921727. The next prime is 10921747. The reversal of 10921739 is 93712901.

It is a happy number.

10921739 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (93712901) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10921739 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10921709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5460869 + 5460870.

It is an arithmetic number, because the mean of its divisors is an integer number (5460870).

Almost surely, 2^10921739 is an apocalyptic number.

10921739 is a deficient number, since it is larger than the sum of its proper divisors (1).

10921739 is an equidigital number, since it uses as much as digits as its factorization.

10921739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 10921739 is about 3304.8054405668. The cubic root of 10921739 is about 221.8693262849.

The spelling of 10921739 in words is "ten million, nine hundred twenty-one thousand, seven hundred thirty-nine".