39003970 has 8 divisors (see below), whose sum is σ = 70207164. Its totient is φ = 15601584.

The previous prime is 39003947. The next prime is 39003971. The reversal of 39003970 is 7930093.

It can be written as a sum of positive squares in 2 ways, for example, as 35796289 + 3207681 = 5983^2 + 1791^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (39003971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1950189 + ... + 1950208.

Almost surely, 2^39003970 is an apocalyptic number.

39003970 is a deficient number, since it is larger than the sum of its proper divisors (31203194).

39003970 is a wasteful number, since it uses less digits than its factorization.

39003970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3900404.

The product of its (nonzero) digits is 5103, while the sum is 31.

The square root of 39003970 is about 6245.3158446951. The cubic root of 39003970 is about 339.1326508421.

The spelling of 39003970 in words is "thirty-nine million, three thousand, nine hundred seventy".