9420709 has 2 divisors, whose sum is σ = 9420710. Its totient is φ = 9420708.

The previous prime is 9420701. The next prime is 9420721. The reversal of 9420709 is 9070249.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6708100 + 2712609 = 2590^2 + 1647^2 .

It is a cyclic number.

It is not a de Polignac number, because 9420709 - 2³ = 9420701 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 (9420701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4710354 + 4710355.

It is an arithmetic number, because the mean of its divisors is an integer number (4710355).

Almost surely, 2^9420709 is an apocalyptic number.

It is an amenable number.

9420709 is a deficient number, since it is larger than the sum of its proper divisors (1).

9420709 is an equidigital number, since it uses as much as digits as its factorization.

9420709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 9420709 is about 3069.3173508127. The cubic root of 9420709 is about 211.2002994548.

The spelling of 9420709 in words is "nine million, four hundred twenty thousand, seven hundred nine".