39984001 has 6 divisors (see below), whose sum is σ = 40276502. Its totient is φ = 39693600.

The previous prime is 39983989. The next prime is 39984019. The reversal of 39984001 is 10048993.

It can be written as a sum of positive squares in 3 ways, for example, as 2480625 + 37503376 = 1575^2 + 6124^2 .

It is not a de Polignac number, because 39984001 - 2⁵ = 39983969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39984041) 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, 21301 + ... + 23101.

Almost surely, 2^39984001 is an apocalyptic number.

It is an amenable number.

39984001 is a deficient number, since it is larger than the sum of its proper divisors (292501).

39984001 is an equidigital number, since it uses as much as digits as its factorization.

39984001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2099 (or 1950 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 39984001 is about 6323.2903618290. The cubic root of 39984001 is about 341.9495867462.

The spelling of 39984001 in words is "thirty-nine million, nine hundred eighty-four thousand, one".