73000007 has 4 divisors (see below), whose sum is σ = 73017456. Its totient is φ = 72982560.

The previous prime is 73000003. The next prime is 73000013. The reversal of 73000007 is 70000037.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 73000007 - 2² = 73000003 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 (73000003) 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 3 ways as a sum of consecutive naturals, for example, 1718 + ... + 12204.

It is an arithmetic number, because the mean of its divisors is an integer number (18254364).

Almost surely, 2^73000007 is an apocalyptic number.

73000007 is a deficient number, since it is larger than the sum of its proper divisors (17449).

73000007 is a wasteful number, since it uses less digits than its factorization.

73000007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17448.

The product of its (nonzero) digits is 147, while the sum is 17.

The square root of 73000007 is about 8544.0041549615. The cubic root of 73000007 is about 417.9339329967.

The spelling of 73000007 in words is "seventy-three million, seven", and thus it is an aban number and an uban number.