3685624 has 16 divisors (see below), whose sum is σ = 7006320. Its totient is φ = 1817280.

The previous prime is 3685597. The next prime is 3685631. The reversal of 3685624 is 4265863.

It is a happy number.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 3685624.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2572 + ... + 3739.

It is an arithmetic number, because the mean of its divisors is an integer number (437895).

Almost surely, 2^3685624 is an apocalyptic number.

It is an amenable number.

3685624 is a deficient number, since it is larger than the sum of its proper divisors (3320696).

3685624 is a wasteful number, since it uses less digits than its factorization.

3685624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6390 (or 6386 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 3685624 is about 1919.7979060307. The cubic root of 3685624 is about 154.4674613699.

It can be divided in two parts, 3685 and 624, that multiplied together give a triangular number (2299440 = T₂₁₄₄).

The spelling of 3685624 in words is "three million, six hundred eighty-five thousand, six hundred twenty-four".