39003968 has 14 divisors (see below), whose sum is σ = 77398626. Its totient is φ = 19501952.

The previous prime is 39003947. The next prime is 39003971. The reversal of 39003968 is 86930093.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 34199104 + 4804864 = 5848^2 + 2192^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304655 + ... + 304782.

Almost surely, 2^39003968 is an apocalyptic number.

It is an amenable number.

39003968 is a deficient number, since it is larger than the sum of its proper divisors (38394658).

39003968 is an equidigital number, since it uses as much as digits as its factorization.

39003968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609449 (or 609439 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 39003968 is about 6245.3156845751. The cubic root of 39003968 is about 339.1326450456.

The spelling of 39003968 in words is "thirty-nine million, three thousand, nine hundred sixty-eight".