3694820 has 24 divisors (see below), whose sum is σ = 7970424. Its totient is φ = 1437696.

The previous prime is 3694813. The next prime is 3694829. The reversal of 3694820 is 284963.

It can be written as a sum of positive squares in 4 ways, for example, as 763876 + 2930944 = 874^2 + 1712^2 .

It is not an unprimeable number, because it can be changed into a prime (3694829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1757 + ... + 3236.

It is an arithmetic number, because the mean of its divisors is an integer number (332101).

Almost surely, 2^3694820 is an apocalyptic number.

It is an amenable number.

3694820 is an abundant number, since it is smaller than the sum of its proper divisors (4275604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3694820 is a wasteful number, since it uses less digits than its factorization.

3694820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5039 (or 5037 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 3694820 is about 1922.1914576857. The cubic root of 3694820 is about 154.5958252503.

The spelling of 3694820 in words is "three million, six hundred ninety-four thousand, eight hundred twenty".