3954647 has 4 divisors (see below), whose sum is σ = 3976920. Its totient is φ = 3932376.

The previous prime is 3954637. The next prime is 3954649. The reversal of 3954647 is 7464593.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3954647 - 2⁶ = 3954583 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3954647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3954649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10868 + ... + 11225.

It is an arithmetic number, because the mean of its divisors is an integer number (994230).

Almost surely, 2^3954647 is an apocalyptic number.

3954647 is a deficient number, since it is larger than the sum of its proper divisors (22273).

3954647 is a wasteful number, since it uses less digits than its factorization.

3954647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22272.

The product of its digits is 90720, while the sum is 38.

The square root of 3954647 is about 1988.6294275204. The cubic root of 3954647 is about 158.1378783639.

It can be divided in two parts, 39546 and 47, that added together give a palindrome (39593).

The spelling of 3954647 in words is "three million, nine hundred fifty-four thousand, six hundred forty-seven".