3958647 has 16 divisors (see below), whose sum is σ = 6580992. Its totient is φ = 2056320.

The previous prime is 3958627. The next prime is 3958657. The reversal of 3958647 is 7468593.

It is a happy number.

It is not a de Polignac number, because 3958647 - 2⁶ = 3958583 is a prime.

3958647 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3958599 and 3958608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3958627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8338 + ... + 8799.

It is an arithmetic number, because the mean of its divisors is an integer number (411312).

Almost surely, 2^3958647 is an apocalyptic number.

3958647 is a deficient number, since it is larger than the sum of its proper divisors (2622345).

3958647 is a wasteful number, since it uses less digits than its factorization.

3958647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17158.

The product of its digits is 181440, while the sum is 42.

The square root of 3958647 is about 1989.6348911295. The cubic root of 3958647 is about 158.1911775471.

The spelling of 3958647 in words is "three million, nine hundred fifty-eight thousand, six hundred forty-seven".