38109859 has 2 divisors, whose sum is σ = 38109860. Its totient is φ = 38109858.

The previous prime is 38109853. The next prime is 38109871. The reversal of 38109859 is 95890183.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38109859 - 2¹³ = 38101667 is a prime.

It is a super-2 number, since 2×38109859² = 2904722705999762, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38109853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19054929 + 19054930.

It is an arithmetic number, because the mean of its divisors is an integer number (19054930).

Almost surely, 2^38109859 is an apocalyptic number.

38109859 is a deficient number, since it is larger than the sum of its proper divisors (1).

38109859 is an equidigital number, since it uses as much as digits as its factorization.

38109859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 38109859 is about 6173.3183135166. The cubic root of 38109859 is about 336.5212142762.

The spelling of 38109859 in words is "thirty-eight million, one hundred nine thousand, eight hundred fifty-nine".