72280933 has 8 divisors (see below), whose sum is σ = 74753280. Its totient is φ = 69817440.

The previous prime is 72280919. The next prime is 72280937. The reversal of 72280933 is 33908227.

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 72280933 - 2¹³ = 72272741 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 (72280937) 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, 17238 + ... + 21016.

It is an arithmetic number, because the mean of its divisors is an integer number (9344160).

Almost surely, 2^72280933 is an apocalyptic number.

It is an amenable number.

72280933 is a deficient number, since it is larger than the sum of its proper divisors (2472347).

72280933 is a wasteful number, since it uses less digits than its factorization.

72280933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4427.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 72280933 is about 8501.8193935181. The cubic root of 72280933 is about 416.5571403499.

The spelling of 72280933 in words is "seventy-two million, two hundred eighty thousand, nine hundred thirty-three".