73278085 has 8 divisors (see below), whose sum is σ = 88033176. Its totient is φ = 58556160.

The previous prime is 73278083. The next prime is 73278089. The reversal of 73278085 is 58087237.

It can be written as a sum of positive squares in 4 ways, for example, as 11404129 + 61873956 = 3377^2 + 7866^2 .

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

It is not a de Polignac number, because 73278085 - 2¹ = 73278083 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73278083) 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, 3136 + ... + 12505.

It is an arithmetic number, because the mean of its divisors is an integer number (11004147).

Almost surely, 2^73278085 is an apocalyptic number.

It is an amenable number.

73278085 is a deficient number, since it is larger than the sum of its proper divisors (14755091).

73278085 is a wasteful number, since it uses less digits than its factorization.

73278085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16583.

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 73278085 is about 8560.2619702904. The cubic root of 73278085 is about 418.4639373942.

The spelling of 73278085 in words is "seventy-three million, two hundred seventy-eight thousand, eighty-five".