3698805 has 32 divisors (see below), whose sum is σ = 6687360. Its totient is φ = 1729280.

The previous prime is 3698801. The next prime is 3698819. The reversal of 3698805 is 5088963.

3698805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3698805 - 2² = 3698801 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3698801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4399 + ... + 5171.

It is an arithmetic number, because the mean of its divisors is an integer number (208980).

Almost surely, 2^3698805 is an apocalyptic number.

It is an amenable number.

3698805 is a deficient number, since it is larger than the sum of its proper divisors (2988555).

3698805 is a wasteful number, since it uses less digits than its factorization.

3698805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 3698805 is about 1923.2277556233. The cubic root of 3698805 is about 154.6513843856.

The spelling of 3698805 in words is "three million, six hundred ninety-eight thousand, eight hundred five".