3695409 has 32 divisors (see below), whose sum is σ = 5927040. Its totient is φ = 2267136.

The previous prime is 3695407. The next prime is 3695411. The reversal of 3695409 is 9045963.

It is an interprime number because it is at equal distance from previous prime (3695407) and next prime (3695411).

It is not a de Polignac number, because 3695409 - 2¹ = 3695407 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3695401) 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, 38049 + ... + 38145.

It is an arithmetic number, because the mean of its divisors is an integer number (185220).

Almost surely, 2^3695409 is an apocalyptic number.

It is an amenable number.

3695409 is a deficient number, since it is larger than the sum of its proper divisors (2231631).

3695409 is a wasteful number, since it uses less digits than its factorization.

3695409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206 (or 200 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 3695409 is about 1922.3446621249. The cubic root of 3695409 is about 154.6040396426.

It can be divided in two parts, 369 and 5409, that added together give a triangular number (5778 = T₁₀₇).

The spelling of 3695409 in words is "three million, six hundred ninety-five thousand, four hundred nine".