3706569 has 6 divisors (see below), whose sum is σ = 5353946. Its totient is φ = 2471040.

The previous prime is 3706529. The next prime is 3706609. The reversal of 3706569 is 9656073.

It is a happy number.

3706569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3706529) and next prime (3706609).

It can be written as a sum of positive squares in only one way, i.e., 2295225 + 1411344 = 1515^2 + 1188^2 .

It is not a de Polignac number, because 3706569 - 2²¹ = 1609417 is a prime.

It is a super-2 number, since 2×3706569² = 27477307503522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3706529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 205912 + ... + 205929.

Almost surely, 2^3706569 is an apocalyptic number.

It is an amenable number.

3706569 is a deficient number, since it is larger than the sum of its proper divisors (1647377).

3706569 is a wasteful number, since it uses less digits than its factorization.

3706569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411847 (or 411844 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 36.

The square root of 3706569 is about 1925.2451791915. The cubic root of 3706569 is about 154.7595160845.

The spelling of 3706569 in words is "three million, seven hundred six thousand, five hundred sixty-nine".