72827471 has 2 divisors, whose sum is σ = 72827472. Its totient is φ = 72827470.

The previous prime is 72827449. The next prime is 72827519. The reversal of 72827471 is 17472827.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72827471 - 2²² = 68633167 is a prime.

It is a super-3 number, since 3×72827471³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72827431) 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 as a sum of consecutive naturals, namely, 36413735 + 36413736.

It is an arithmetic number, because the mean of its divisors is an integer number (36413736).

Almost surely, 2^72827471 is an apocalyptic number.

72827471 is a deficient number, since it is larger than the sum of its proper divisors (1).

72827471 is an equidigital number, since it uses as much as digits as its factorization.

72827471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43904, while the sum is 38.

The square root of 72827471 is about 8533.9012766729. The cubic root of 72827471 is about 417.6044100442.

The spelling of 72827471 in words is "seventy-two million, eight hundred twenty-seven thousand, four hundred seventy-one".