73078005 has 128 divisors (see below), whose sum is σ = 163086336. Its totient is φ = 26956800.

The previous prime is 73078001. The next prime is 73078007. The reversal of 73078005 is 50087037.

73078005 is a nontrivial binomial coefficient, being equal to C(12090, 2).

It is not a de Polignac number, because 73078005 - 2² = 73078001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73078001) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 465387 + ... + 465543.

It is an arithmetic number, because the mean of its divisors is an integer number (1274112).

Almost surely, 2^73078005 is an apocalyptic number.

73078005 is the 12089-th triangular number and also the 6045-th hexagonal number.

It is an amenable number.

73078005 is an abundant number, since it is smaller than the sum of its proper divisors (90008331).

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

73078005 is a wasteful number, since it uses less digits than its factorization.

73078005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 73078005 is about 8548.5674238436. The cubic root of 73078005 is about 418.0827293653.

The spelling of 73078005 in words is "seventy-three million, seventy-eight thousand, five".