3946660 has 24 divisors (see below), whose sum is σ = 8491896. Its totient is φ = 1539840.

The previous prime is 3946643. The next prime is 3946673. The reversal of 3946660 is 666493.

It can be written as a sum of positive squares in 4 ways, for example, as 112896 + 3833764 = 336^2 + 1958^2 .

It is a super-2 number, since 2×3946660² = 31152250311200, which contains 22 as substring.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1587 + ... + 3226.

It is an arithmetic number, because the mean of its divisors is an integer number (353829).

Almost surely, 2^3946660 is an apocalyptic number.

It is an amenable number.

3946660 is an abundant number, since it is smaller than the sum of its proper divisors (4545236).

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

3946660 is a wasteful number, since it uses less digits than its factorization.

3946660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4863 (or 4861 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 3946660 is about 1986.6202455427. The cubic root of 3946660 is about 158.0313455942.

The spelling of 3946660 in words is "three million, nine hundred forty-six thousand, six hundred sixty".