4200709 has 2 divisors, whose sum is σ = 4200710. Its totient is φ = 4200708.

The previous prime is 4200701. The next prime is 4200731. The reversal of 4200709 is 9070024.

It is an a-pointer prime, because the next prime (4200731) can be obtained adding 4200709 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4088484 + 112225 = 2022^2 + 335^2 .

It is a cyclic number.

It is not a de Polignac number, because 4200709 - 2³ = 4200701 is a prime.

It is a super-2 number, since 2×4200709² = 35291912205362, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4200709.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4200701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2100354 + 2100355.

It is an arithmetic number, because the mean of its divisors is an integer number (2100355).

Almost surely, 2^4200709 is an apocalyptic number.

It is an amenable number.

4200709 is a deficient number, since it is larger than the sum of its proper divisors (1).

4200709 is an equidigital number, since it uses as much as digits as its factorization.

4200709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 4200709 is about 2049.5631241804. The cubic root of 4200709 is about 161.3519428290.

The spelling of 4200709 in words is "four million, two hundred thousand, seven hundred nine".