38872005 has 16 divisors (see below), whose sum is σ = 65469120. Its totient is φ = 19640448.

The previous prime is 38871991. The next prime is 38872019. The reversal of 38872005 is 50027883.

It is an interprime number because it is at equal distance from previous prime (38871991) and next prime (38872019).

It is not a de Polignac number, because 38872005 - 2¹⁸ = 38609861 is a prime.

It is a super-2 number, since 2×38872005² = 3022065545440050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 67912 + ... + 68481.

It is an arithmetic number, because the mean of its divisors is an integer number (4091820).

Almost surely, 2^38872005 is an apocalyptic number.

It is an amenable number.

38872005 is a deficient number, since it is larger than the sum of its proper divisors (26597115).

38872005 is a wasteful number, since it uses less digits than its factorization.

38872005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136420.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 38872005 is about 6234.7417749254. The cubic root of 38872005 is about 338.7497478700.

Adding to 38872005 its reverse (50027883), we get a palindrome (88899888).

The spelling of 38872005 in words is "thirty-eight million, eight hundred seventy-two thousand, five".