4039947 has 6 divisors (see below), whose sum is σ = 5835492. Its totient is φ = 2693292.

The previous prime is 4039901. The next prime is 4039949. The reversal of 4039947 is 7499304.

It is not a de Polignac number, because 4039947 - 2¹⁴ = 4023563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4039949) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 224433 + ... + 224450.

It is an arithmetic number, because the mean of its divisors is an integer number (972582).

Almost surely, 2^4039947 is an apocalyptic number.

4039947 is a deficient number, since it is larger than the sum of its proper divisors (1795545).

4039947 is a wasteful number, since it uses less digits than its factorization.

4039947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448889 (or 448886 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 4039947 is about 2009.9619399382. The cubic root of 4039947 is about 159.2667883660.

The spelling of 4039947 in words is "four million, thirty-nine thousand, nine hundred forty-seven".