7420709 has 2 divisors, whose sum is σ = 7420710. Its totient is φ = 7420708.

The previous prime is 7420703. The next prime is 7420727. The reversal of 7420709 is 9070247.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7317025 + 103684 = 2705^2 + 322^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7420709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7420703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3710354 + 3710355.

It is an arithmetic number, because the mean of its divisors is an integer number (3710355).

Almost surely, 2^7420709 is an apocalyptic number.

It is an amenable number.

7420709 is a deficient number, since it is larger than the sum of its proper divisors (1).

7420709 is an equidigital number, since it uses as much as digits as its factorization.

7420709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 7420709 is about 2724.0978323107. The cubic root of 7420709 is about 195.0511283858.

The spelling of 7420709 in words is "seven million, four hundred twenty thousand, seven hundred nine".