3699605 has 32 divisors (see below), whose sum is σ = 5612544. Its totient is φ = 2278656.

The previous prime is 3699601. The next prime is 3699607. The reversal of 3699605 is 5069963.

It is a cyclic number.

It is not a de Polignac number, because 3699605 - 2² = 3699601 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3699601) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21299 + ... + 21471.

It is an arithmetic number, because the mean of its divisors is an integer number (175392).

Almost surely, 2^3699605 is an apocalyptic number.

3699605 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3699605 is a deficient number, since it is larger than the sum of its proper divisors (1912939).

3699605 is a wasteful number, since it uses less digits than its factorization.

3699605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245.

The product of its (nonzero) digits is 43740, while the sum is 38.

The square root of 3699605 is about 1923.4357280658. The cubic root of 3699605 is about 154.6625332286.

The spelling of 3699605 in words is "three million, six hundred ninety-nine thousand, six hundred five".