72044471 has 2 divisors, whose sum is σ = 72044472. Its totient is φ = 72044470.

The previous prime is 72044461. The next prime is 72044501. The reversal of 72044471 is 17444027.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72044471 - 2¹⁴ = 72028087 is a prime.

It is a super-3 number, since 3×72044471³ (a number of 25 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72044431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36022235 + 36022236.

It is an arithmetic number, because the mean of its divisors is an integer number (36022236).

Almost surely, 2^72044471 is an apocalyptic number.

72044471 is a deficient number, since it is larger than the sum of its proper divisors (1).

72044471 is an equidigital number, since it uses as much as digits as its factorization.

72044471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6272, while the sum is 29.

The square root of 72044471 is about 8487.9014485325. The cubic root of 72044471 is about 416.1023982856.

Adding to 72044471 its reverse (17444027), we get a palindrome (89488498).

The spelling of 72044471 in words is "seventy-two million, forty-four thousand, four hundred seventy-one".