73072013 has 8 divisors (see below), whose sum is σ = 83591040. Its totient is φ = 62573040.

The previous prime is 73071997. The next prime is 73072057. The reversal of 73072013 is 31027037.

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 73072013 - 2⁴ = 73071997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 73072013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73072073) 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, 3848 + ... + 12686.

It is an arithmetic number, because the mean of its divisors is an integer number (10448880).

Almost surely, 2^73072013 is an apocalyptic number.

It is an amenable number.

73072013 is a deficient number, since it is larger than the sum of its proper divisors (10519027).

73072013 is a wasteful number, since it uses less digits than its factorization.

73072013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10027.

The product of its (nonzero) digits is 882, while the sum is 23.

The square root of 73072013 is about 8548.2169485806. The cubic root of 73072013 is about 418.0713022143.

The spelling of 73072013 in words is "seventy-three million, seventy-two thousand, thirteen".