38712709 has 16 divisors (see below), whose sum is σ = 48182400. Its totient is φ = 30348864.

The previous prime is 38712701. The next prime is 38712731. The reversal of 38712709 is 90721783.

38712709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38712709 - 2³ = 38712701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38712701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1162 + ... + 8875.

It is an arithmetic number, because the mean of its divisors is an integer number (3011400).

Almost surely, 2^38712709 is an apocalyptic number.

It is an amenable number.

38712709 is a deficient number, since it is larger than the sum of its proper divisors (9469691).

38712709 is a wasteful number, since it uses less digits than its factorization.

38712709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10092.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 38712709 is about 6221.9537928210. The cubic root of 38712709 is about 338.2863864800.

The spelling of 38712709 in words is "thirty-eight million, seven hundred twelve thousand, seven hundred nine".