3725805 has 32 divisors (see below), whose sum is σ = 6652800. Its totient is φ = 1769472.

The previous prime is 3725783. The next prime is 3725809. The reversal of 3725805 is 5085273.

It is a happy number.

It is not a de Polignac number, because 3725805 - 2⁷ = 3725677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3725809) 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, 4461 + ... + 5229.

It is an arithmetic number, because the mean of its divisors is an integer number (207900).

Almost surely, 2^3725805 is an apocalyptic number.

It is an amenable number.

3725805 is a deficient number, since it is larger than the sum of its proper divisors (2926995).

3725805 is a wasteful number, since it uses less digits than its factorization.

3725805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 3725805 is about 1930.2344417195. The cubic root of 3725805 is about 155.0267730374.

The spelling of 3725805 in words is "three million, seven hundred twenty-five thousand, eight hundred five".