72740327 has 8 divisors (see below), whose sum is σ = 80850960. Its totient is φ = 64879360.

The previous prime is 72740321. The next prime is 72740347. The reversal of 72740327 is 72304727.

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 72740327 - 2²⁰ = 71691751 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72740293 and 72740302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72740321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61802 + ... + 62967.

It is an arithmetic number, because the mean of its divisors is an integer number (10106370).

Almost surely, 2^72740327 is an apocalyptic number.

72740327 is a deficient number, since it is larger than the sum of its proper divisors (8110633).

72740327 is a wasteful number, since it uses less digits than its factorization.

72740327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124833.

The product of its (nonzero) digits is 16464, while the sum is 32.

The square root of 72740327 is about 8528.7939944637. The cubic root of 72740327 is about 417.4377776682.

Subtracting from 72740327 its reverse (72304727), we obtain a square (435600 = 660²).

The spelling of 72740327 in words is "seventy-two million, seven hundred forty thousand, three hundred twenty-seven".