73830013 has 4 divisors (see below), whose sum is σ = 73848060. Its totient is φ = 73811968.

The previous prime is 73829993. The next prime is 73830061. The reversal of 73830013 is 31003837.

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

It can be written as a sum of positive squares in 2 ways, for example, as 37613689 + 36216324 = 6133^2 + 6018^2 .

It is a cyclic number.

It is not a de Polignac number, because 73830013 - 2⁵ = 73829981 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73830013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73830073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 381 + ... + 12157.

It is an arithmetic number, because the mean of its divisors is an integer number (18462015).

Almost surely, 2^73830013 is an apocalyptic number.

It is an amenable number.

73830013 is a deficient number, since it is larger than the sum of its proper divisors (18047).

73830013 is a wasteful number, since it uses less digits than its factorization.

73830013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18046.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 73830013 is about 8592.4392927736. The cubic root of 73830013 is about 419.5119292665.

The spelling of 73830013 in words is "seventy-three million, eight hundred thirty thousand, thirteen".