3660978 has 8 divisors (see below), whose sum is σ = 7321968. Its totient is φ = 1220324.

The previous prime is 3660961. The next prime is 3661019. The reversal of 3660978 is 8790663.

It is a sphenic number, since it is the product of 3 distinct primes.

3660978 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305076 + ... + 305087.

It is an arithmetic number, because the mean of its divisors is an integer number (915246).

Almost surely, 2^3660978 is an apocalyptic number.

3660978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3660978 is a wasteful number, since it uses less digits than its factorization.

3660978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610168.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 3660978 is about 1913.3682342926. The cubic root of 3660978 is about 154.1223798122.

The spelling of 3660978 in words is "three million, six hundred sixty thousand, nine hundred seventy-eight".