72788671 has 2 divisors, whose sum is σ = 72788672. Its totient is φ = 72788670.

The previous prime is 72788641. The next prime is 72788689. The reversal of 72788671 is 17688727.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72788671 - 2¹⁹ = 72264383 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72788641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36394335 + 36394336.

It is an arithmetic number, because the mean of its divisors is an integer number (36394336).

Almost surely, 2^72788671 is an apocalyptic number.

72788671 is a deficient number, since it is larger than the sum of its proper divisors (1).

72788671 is an equidigital number, since it uses as much as digits as its factorization.

72788671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 263424, while the sum is 46.

The square root of 72788671 is about 8531.6276876104. The cubic root of 72788671 is about 417.5302350604.

It can be divided in two parts, 727 and 88671, that added together give a palindrome (89398).

The spelling of 72788671 in words is "seventy-two million, seven hundred eighty-eight thousand, six hundred seventy-one".