38806605 has 12 divisors (see below), whose sum is σ = 67264860. Its totient is φ = 20696832.

The previous prime is 38806583. The next prime is 38806609. The reversal of 38806605 is 50660883.

It can be written as a sum of positive squares in 2 ways, for example, as 24472809 + 14333796 = 4947^2 + 3786^2 .

It is not a de Polignac number, because 38806605 - 2⁷ = 38806477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38806605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38806609) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 431140 + ... + 431229.

It is an arithmetic number, because the mean of its divisors is an integer number (5605405).

Almost surely, 2^38806605 is an apocalyptic number.

It is an amenable number.

38806605 is a deficient number, since it is larger than the sum of its proper divisors (28458255).

38806605 is a wasteful number, since it uses less digits than its factorization.

38806605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862380 (or 862377 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 38806605 is about 6229.4947628199. The cubic root of 38806605 is about 338.5596653195.

The spelling of 38806605 in words is "thirty-eight million, eight hundred six thousand, six hundred five".