72384733 has 4 divisors (see below), whose sum is σ = 72401760. Its totient is φ = 72367708.

The previous prime is 72384709. The next prime is 72384743. The reversal of 72384733 is 33748327.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 72384733 - 2¹³ = 72376541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72384692 and 72384701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72384743) 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, 3816 + ... + 12622.

It is an arithmetic number, because the mean of its divisors is an integer number (18100440).

Almost surely, 2^72384733 is an apocalyptic number.

It is an amenable number.

72384733 is a deficient number, since it is larger than the sum of its proper divisors (17027).

72384733 is an equidigital number, since it uses as much as digits as its factorization.

72384733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17026.

The product of its digits is 84672, while the sum is 37.

The square root of 72384733 is about 8507.9217791421. The cubic root of 72384733 is about 416.7564457917.

The spelling of 72384733 in words is "seventy-two million, three hundred eighty-four thousand, seven hundred thirty-three".