73506078 has 12 divisors (see below), whose sum is σ = 159263208. Its totient is φ = 24502020.

The previous prime is 73506077. The next prime is 73506089. The reversal of 73506078 is 87060537.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73506077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2041818 + ... + 2041853.

It is an arithmetic number, because the mean of its divisors is an integer number (13271934).

Almost surely, 2^73506078 is an apocalyptic number.

73506078 is an abundant number, since it is smaller than the sum of its proper divisors (85757130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73506078 is a wasteful number, since it uses less digits than its factorization.

73506078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4083679 (or 4083676 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 73506078 is about 8573.5685685717. The cubic root of 73506078 is about 418.8974825279.

The spelling of 73506078 in words is "seventy-three million, five hundred six thousand, seventy-eight".