73682581 has 8 divisors (see below), whose sum is σ = 84299904. Its totient is φ = 63088080.

The previous prime is 73682579. The next prime is 73682599. The reversal of 73682581 is 18528637.

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 73682581 - 2¹ = 73682579 is a prime.

It is a super-2 number, since 2×73682581² = 10858245485643122, 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 (73622581) 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, 1896 + ... + 12286.

It is an arithmetic number, because the mean of its divisors is an integer number (10537488).

Almost surely, 2^73682581 is an apocalyptic number.

It is an amenable number.

73682581 is a deficient number, since it is larger than the sum of its proper divisors (10617323).

73682581 is a wasteful number, since it uses less digits than its factorization.

73682581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11411.

The product of its digits is 80640, while the sum is 40.

The square root of 73682581 is about 8583.8558352293. The cubic root of 73682581 is about 419.2325004575.

The spelling of 73682581 in words is "seventy-three million, six hundred eighty-two thousand, five hundred eighty-one".