73285681 has 8 divisors (see below), whose sum is σ = 83863424. Its totient is φ = 62735040.

The previous prime is 73285673. The next prime is 73285687. The reversal of 73285681 is 18658237.

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 73285681 - 2³ = 73285673 is a prime.

It is a super-2 number, since 2×73285681² = 10741582079267522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73285687) 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, 600 + ... + 12121.

It is an arithmetic number, because the mean of its divisors is an integer number (10482928).

Almost surely, 2^73285681 is an apocalyptic number.

It is an amenable number.

73285681 is a deficient number, since it is larger than the sum of its proper divisors (10577743).

73285681 is a wasteful number, since it uses less digits than its factorization.

73285681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13551.

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

The square root of 73285681 is about 8560.7056368035. The cubic root of 73285681 is about 418.4783962066.

The spelling of 73285681 in words is "seventy-three million, two hundred eighty-five thousand, six hundred eighty-one".