38758889 has 4 divisors (see below), whose sum is σ = 41740356. Its totient is φ = 35777424.

The previous prime is 38758883. The next prime is 38758891. The reversal of 38758889 is 98885783.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98885783 = 211 ⋅468653.

It can be written as a sum of positive squares in 2 ways, for example, as 23116864 + 15642025 = 4808^2 + 3955^2 .

It is a cyclic number.

It is not a de Polignac number, because 38758889 - 2²⁰ = 37710313 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38758883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1490714 + ... + 1490739.

It is an arithmetic number, because the mean of its divisors is an integer number (10435089).

Almost surely, 2^38758889 is an apocalyptic number.

It is an amenable number.

38758889 is a deficient number, since it is larger than the sum of its proper divisors (2981467).

38758889 is a wasteful number, since it uses less digits than its factorization.

38758889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2981466.

The product of its digits is 3870720, while the sum is 56.

The square root of 38758889 is about 6225.6637397148. The cubic root of 38758889 is about 338.4208458349.

The spelling of 38758889 in words is "thirty-eight million, seven hundred fifty-eight thousand, eight hundred eighty-nine".