3669705 has 80 divisors (see below), whose sum is σ = 7683984. Its totient is φ = 1658880.

The previous prime is 3669691. The next prime is 3669709. The reversal of 3669705 is 5079663.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 558009 + 3111696 = 747^2 + 1764^2 .

It is not a de Polignac number, because 3669705 - 2¹² = 3665609 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3669705.

It is not an unprimeable number, because it can be changed into a prime (3669709) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 89485 + ... + 89525.

Almost surely, 2^3669705 is an apocalyptic number.

It is an amenable number.

3669705 is an abundant number, since it is smaller than the sum of its proper divisors (4014279).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3669705 is a wasteful number, since it uses less digits than its factorization.

3669705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88 (or 79 counting only the distinct ones).

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

The square root of 3669705 is about 1915.6474101462. The cubic root of 3669705 is about 154.2447477212.

The spelling of 3669705 in words is "three million, six hundred sixty-nine thousand, seven hundred five".