73858 has 4 divisors (see below), whose sum is σ = 110790. Its totient is φ = 36928.

The previous prime is 73849. The next prime is 73859. The reversal of 73858 is 85837.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 56169 + 17689 = 237^2 + 133^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (73859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18463 + ... + 18466.

2⁷³⁸⁵⁸ is an apocalyptic number.

73858 is a deficient number, since it is larger than the sum of its proper divisors (36932).

73858 is a wasteful number, since it uses less digits than its factorization.

73858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36931.

The product of its digits is 6720, while the sum is 31.

The square root of 73858 is about 271.7682836536. The cubic root of 73858 is about 41.9564931186.

The spelling of 73858 in words is "seventy-three thousand, eight hundred fifty-eight".