72554727 has 8 divisors (see below), whose sum is σ = 110559616. Its totient is φ = 41459832.

The previous prime is 72554689. The next prime is 72554747. The reversal of 72554727 is 72745527.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72554727 - 2¹² = 72550631 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 (72554747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1727473 + ... + 1727514.

It is an arithmetic number, because the mean of its divisors is an integer number (13819952).

Almost surely, 2^72554727 is an apocalyptic number.

72554727 is a deficient number, since it is larger than the sum of its proper divisors (38004889).

72554727 is a wasteful number, since it uses less digits than its factorization.

72554727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3454997.

The product of its digits is 137200, while the sum is 39.

The square root of 72554727 is about 8517.9062568216. The cubic root of 72554727 is about 417.0824386007.

The spelling of 72554727 in words is "seventy-two million, five hundred fifty-four thousand, seven hundred twenty-seven".