73648081 has 8 divisors (see below), whose sum is σ = 82048680. Its totient is φ = 65638272.

The previous prime is 73648079. The next prime is 73648117. The reversal of 73648081 is 18084637.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2076481 + 71571600 = 1441^2 + 8460^2 .

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 73648081 - 2¹ = 73648079 is a prime.

It is a super-2 number, since 2×73648081² = 10848079669965122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73648081.

It is not an unprimeable number, because it can be changed into a prime (73648031) 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, 97300 + ... + 98053.

It is an arithmetic number, because the mean of its divisors is an integer number (10256085).

Almost surely, 2^73648081 is an apocalyptic number.

It is an amenable number.

73648081 is a deficient number, since it is larger than the sum of its proper divisors (8400599).

73648081 is a wasteful number, since it uses less digits than its factorization.

73648081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195395.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 73648081 is about 8581.8460135335. The cubic root of 73648081 is about 419.1670585803.

The spelling of 73648081 in words is "seventy-three million, six hundred forty-eight thousand, eighty-one".