3947630 has 32 divisors (see below), whose sum is σ = 7603200. Its totient is φ = 1471392.

The previous prime is 3947627. The next prime is 3947639. The reversal of 3947630 is 367493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3947639) by changing a digit.

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, 14879 + ... + 15141.

It is an arithmetic number, because the mean of its divisors is an integer number (237600).

Almost surely, 2^3947630 is an apocalyptic number.

3947630 is a deficient number, since it is larger than the sum of its proper divisors (3655570).

3947630 is a wasteful number, since it uses less digits than its factorization.

3947630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 3947630 is about 1986.8643637652. The cubic root of 3947630 is about 158.0442913803.

The spelling of 3947630 in words is "three million, nine hundred forty-seven thousand, six hundred thirty".