3487709 has 2 divisors, whose sum is σ = 3487710. Its totient is φ = 3487708.

The previous prime is 3487699. The next prime is 3487751. The reversal of 3487709 is 9077843.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2325625 + 1162084 = 1525^2 + 1078^2 .

It is an emirp because it is prime and its reverse (9077843) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3487709 - 2²⁰ = 2439133 is a prime.

It is a super-2 number, since 2×3487709² = 24328228137362, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3487769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1743854 + 1743855.

It is an arithmetic number, because the mean of its divisors is an integer number (1743855).

Almost surely, 2^3487709 is an apocalyptic number.

It is an amenable number.

3487709 is a deficient number, since it is larger than the sum of its proper divisors (1).

3487709 is an equidigital number, since it uses as much as digits as its factorization.

3487709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 3487709 is about 1867.5408964732. The cubic root of 3487709 is about 151.6515129300.

The spelling of 3487709 in words is "three million, four hundred eighty-seven thousand, seven hundred nine".