73381 has 8 divisors (see below), whose sum is σ = 91584. Its totient is φ = 57120.

The previous prime is 73379. The next prime is 73387. The reversal of 73381 is 18337.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 73381 - 2¹ = 73379 is a prime.

It is a super-2 number, since 2×73381² = 10769542322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400 + ... + 553.

It is an arithmetic number, because the mean of its divisors is an integer number (11448).

2⁷³³⁸¹ is an apocalyptic number.

It is an amenable number.

73381 is a deficient number, since it is larger than the sum of its proper divisors (18203).

73381 is a wasteful number, since it uses less digits than its factorization.

73381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971.

The product of its digits is 504, while the sum is 22.

The square root of 73381 is about 270.8892762735. The cubic root of 73381 is about 41.8659748873.

It can be divided in two parts, 73 and 381, that added together give a palindrome (454).

The spelling of 73381 in words is "seventy-three thousand, three hundred eighty-one".