16920713 has 2 divisors, whose sum is σ = 16920714. Its totient is φ = 16920712.

The previous prime is 16920679. The next prime is 16920721. The reversal of 16920713 is 31702961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13564489 + 3356224 = 3683^2 + 1832^2 .

It is a cyclic number.

It is not a de Polignac number, because 16920713 - 2¹⁰ = 16919689 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (16920793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8460356 + 8460357.

It is an arithmetic number, because the mean of its divisors is an integer number (8460357).

Almost surely, 2^16920713 is an apocalyptic number.

It is an amenable number.

16920713 is a deficient number, since it is larger than the sum of its proper divisors (1).

16920713 is an equidigital number, since it uses as much as digits as its factorization.

16920713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 16920713 is about 4113.4794274434. The cubic root of 16920713 is about 256.7277924542.

The spelling of 16920713 in words is "sixteen million, nine hundred twenty thousand, seven hundred thirteen".