39713009 has 4 divisors (see below), whose sum is σ = 45386304. Its totient is φ = 34039716.

The previous prime is 39712999. The next prime is 39713017. The reversal of 39713009 is 90031793.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 39713009 - 2¹⁶ = 39647473 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (39713039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2836637 + ... + 2836650.

It is an arithmetic number, because the mean of its divisors is an integer number (11346576).

Almost surely, 2^39713009 is an apocalyptic number.

It is an amenable number.

39713009 is a deficient number, since it is larger than the sum of its proper divisors (5673295).

39713009 is an equidigital number, since it uses as much as digits as its factorization.

39713009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5673294.

The product of its (nonzero) digits is 5103, while the sum is 32.

The square root of 39713009 is about 6301.8258465305. The cubic root of 39713009 is about 341.1753125424.

The spelling of 39713009 in words is "thirty-nine million, seven hundred thirteen thousand, nine".