38805871 has 4 divisors (see below), whose sum is σ = 41790952. Its totient is φ = 35820792.

The previous prime is 38805863. The next prime is 38805889. The reversal of 38805871 is 17850883.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17850883 = 991 ⋅18013.

It is a cyclic number.

It is not a de Polignac number, because 38805871 - 2³ = 38805863 is a prime.

It is a super-3 number, since 3×38805871³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38805841) 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, 1492521 + ... + 1492546.

It is an arithmetic number, because the mean of its divisors is an integer number (10447738).

Almost surely, 2^38805871 is an apocalyptic number.

38805871 is a deficient number, since it is larger than the sum of its proper divisors (2985081).

38805871 is a wasteful number, since it uses less digits than its factorization.

38805871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2985080.

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 38805871 is about 6229.4358492563. The cubic root of 38805871 is about 338.5575307657.

It can be divided in two parts, 388058 and 71, that added together give a square (388129 = 623²).

The spelling of 38805871 in words is "thirty-eight million, eight hundred five thousand, eight hundred seventy-one".