38858 has 4 divisors (see below), whose sum is σ = 58290. Its totient is φ = 19428.

The previous prime is 38851. The next prime is 38861. The reversal of 38858 is 85883.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85883 = 7 ⋅12269.

It can be written as a sum of positive squares in only one way, i.e., 38809 + 49 = 197^2 + 7^2 .

It is not an unprimeable number, because it can be changed into a prime (38851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9713 + ... + 9716.

2³⁸⁸⁵⁸ is an apocalyptic number.

38858 is a deficient number, since it is larger than the sum of its proper divisors (19432).

38858 is a wasteful number, since it uses less digits than its factorization.

38858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19431.

The product of its digits is 7680, while the sum is 32.

The square root of 38858 is about 197.1243262512. The cubic root of 38858 is about 33.8709060833.

The spelling of 38858 in words is "thirty-eight thousand, eight hundred fifty-eight".