73685381 has 8 divisors (see below), whose sum is σ = 91867584. Its totient is φ = 57417120.

The previous prime is 73685369. The next prime is 73685383. The reversal of 73685381 is 18358637.

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

It is a cyclic number.

It is not a de Polignac number, because 73685381 - 2¹⁰ = 73684357 is a prime.

It is a super-2 number, since 2×73685381² = 10859070746230322, 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 (73685383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478400 + ... + 478553.

It is an arithmetic number, because the mean of its divisors is an integer number (11483448).

Almost surely, 2^73685381 is an apocalyptic number.

It is an amenable number.

73685381 is a deficient number, since it is larger than the sum of its proper divisors (18182203).

73685381 is a wasteful number, since it uses less digits than its factorization.

73685381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956971.

The product of its digits is 120960, while the sum is 41.

The square root of 73685381 is about 8584.0189305476. The cubic root of 73685381 is about 419.2378107860.

The spelling of 73685381 in words is "seventy-three million, six hundred eighty-five thousand, three hundred eighty-one".