72830773 has 4 divisors (see below), whose sum is σ = 73313248. Its totient is φ = 72348300.

The previous prime is 72830761. The next prime is 72830827. The reversal of 72830773 is 37703827.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72830773 is a prime.

It is a super-3 number, since 3×72830773³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72839773) 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, 241011 + ... + 241312.

It is an arithmetic number, because the mean of its divisors is an integer number (18328312).

Almost surely, 2^72830773 is an apocalyptic number.

It is an amenable number.

72830773 is a deficient number, since it is larger than the sum of its proper divisors (482475).

72830773 is a wasteful number, since it uses less digits than its factorization.

72830773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482474.

The product of its (nonzero) digits is 49392, while the sum is 37.

The square root of 72830773 is about 8534.0947381664. The cubic root of 72830773 is about 417.6107213482.

The spelling of 72830773 in words is "seventy-two million, eight hundred thirty thousand, seven hundred seventy-three".