39984004 has 6 divisors (see below), whose sum is σ = 69972014. Its totient is φ = 19992000.

The previous prime is 39983989. The next prime is 39984019. The reversal of 39984004 is 40048993.

It is an interprime number because it is at equal distance from previous prime (39983989) and next prime (39984019).

It can be written as a sum of positive squares in only one way, i.e., 39564100 + 419904 = 6290^2 + 648^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4997997 + ... + 4998004.

Almost surely, 2^39984004 is an apocalyptic number.

It is an amenable number.

39984004 is a deficient number, since it is larger than the sum of its proper divisors (29988010).

39984004 is a wasteful number, since it uses less digits than its factorization.

39984004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9996005 (or 9996003 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 39984004 is about 6323.2905990473. The cubic root of 39984004 is about 341.9495952984.

The spelling of 39984004 in words is "thirty-nine million, nine hundred eighty-four thousand, four".