3630709 has 2 divisors, whose sum is σ = 3630710. Its totient is φ = 3630708.

The previous prime is 3630701. The next prime is 3630733. The reversal of 3630709 is 9070363.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2722500 + 908209 = 1650^2 + 953^2 .

It is an emirp because it is prime and its reverse (9070363) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3630709 - 2³ = 3630701 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3630701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1815354 + 1815355.

It is an arithmetic number, because the mean of its divisors is an integer number (1815355).

Almost surely, 2^3630709 is an apocalyptic number.

It is an amenable number.

3630709 is a deficient number, since it is larger than the sum of its proper divisors (1).

3630709 is an equidigital number, since it uses as much as digits as its factorization.

3630709 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 28.

The square root of 3630709 is about 1905.4419434871. The cubic root of 3630709 is about 153.6964420061.

The spelling of 3630709 in words is "three million, six hundred thirty thousand, seven hundred nine".