3695978 has 16 divisors (see below), whose sum is σ = 6513696. Its totient is φ = 1550640.

The previous prime is 3695977. The next prime is 3695981. The reversal of 3695978 is 8795963.

3695978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (3695971) 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 7 ways as a sum of consecutive naturals, for example, 6176 + ... + 6747.

It is an arithmetic number, because the mean of its divisors is an integer number (407106).

Almost surely, 2^3695978 is an apocalyptic number.

3695978 is a deficient number, since it is larger than the sum of its proper divisors (2817718).

3695978 is a wasteful number, since it uses less digits than its factorization.

3695978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12949.

The product of its digits is 408240, while the sum is 47.

The square root of 3695978 is about 1922.4926527818. The cubic root of 3695978 is about 154.6119742793.

The spelling of 3695978 in words is "three million, six hundred ninety-five thousand, nine hundred seventy-eight".