3966830 has 32 divisors (see below), whose sum is σ = 8303040. Its totient is φ = 1336320.

The previous prime is 3966817. The next prime is 3966857. The reversal of 3966830 is 386693.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3806 + ... + 4734.

It is an arithmetic number, because the mean of its divisors is an integer number (259470).

Almost surely, 2^3966830 is an apocalyptic number.

3966830 is an abundant number, since it is smaller than the sum of its proper divisors (4336210).

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

3966830 is a wasteful number, since it uses less digits than its factorization.

3966830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 3966830 is about 1991.6902369596. The cubic root of 3966830 is about 158.3001025983.

The spelling of 3966830 in words is "three million, nine hundred sixty-six thousand, eight hundred thirty".