38857105 has 32 divisors (see below), whose sum is σ = 56033280. Its totient is φ = 25306560.

The previous prime is 38857103. The next prime is 38857123. The reversal of 38857105 is 50175883.

It is not a de Polignac number, because 38857105 - 2¹ = 38857103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38857103) 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 31 ways as a sum of consecutive naturals, for example, 63712 + ... + 64318.

It is an arithmetic number, because the mean of its divisors is an integer number (1751040).

Almost surely, 2^38857105 is an apocalyptic number.

38857105 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

38857105 is a deficient number, since it is larger than the sum of its proper divisors (17176175).

38857105 is a wasteful number, since it uses less digits than its factorization.

38857105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709.

The product of its (nonzero) digits is 33600, while the sum is 37.

The square root of 38857105 is about 6233.5467432273. The cubic root of 38857105 is about 338.7064603654.

The spelling of 38857105 in words is "thirty-eight million, eight hundred fifty-seven thousand, one hundred five".