3685961 has 4 divisors (see below), whose sum is σ = 3693072. Its totient is φ = 3678852.

The previous prime is 3685951. The next prime is 3685963. The reversal of 3685961 is 1695863.

3685961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3685961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3685963) 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 3 ways as a sum of consecutive naturals, for example, 2711 + ... + 3836.

It is an arithmetic number, because the mean of its divisors is an integer number (923268).

Almost surely, 2^3685961 is an apocalyptic number.

It is an amenable number.

3685961 is a deficient number, since it is larger than the sum of its proper divisors (7111).

3685961 is an equidigital number, since it uses as much as digits as its factorization.

3685961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7110.

The product of its digits is 38880, while the sum is 38.

The square root of 3685961 is about 1919.8856736796. The cubic root of 3685961 is about 154.4721692067.

The spelling of 3685961 in words is "three million, six hundred eighty-five thousand, nine hundred sixty-one".