3685995 has 24 divisors (see below), whose sum is σ = 6460272. Its totient is φ = 1944000.

The previous prime is 3685973. The next prime is 3685999. The reversal of 3685995 is 5995863.

It is not a de Polignac number, because 3685995 - 2⁵ = 3685963 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

3685995 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3685995.

It is not an unprimeable number, because it can be changed into a prime (3685999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4140 + ... + 4950.

It is an arithmetic number, because the mean of its divisors is an integer number (269178).

Almost surely, 2^3685995 is an apocalyptic number.

3685995 is a deficient number, since it is larger than the sum of its proper divisors (2774277).

3685995 is a wasteful number, since it uses less digits than its factorization.

3685995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923 (or 920 counting only the distinct ones).

The product of its digits is 291600, while the sum is 45.

The square root of 3685995 is about 1919.8945283531. The cubic root of 3685995 is about 154.4726441654.

The spelling of 3685995 in words is "three million, six hundred eighty-five thousand, nine hundred ninety-five".