76428271 has 2 divisors, whose sum is σ = 76428272. Its totient is φ = 76428270.

The previous prime is 76428263. The next prime is 76428301. The reversal of 76428271 is 17282467.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 76428271 - 2³ = 76428263 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 76428271.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76428211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38214135 + 38214136.

It is an arithmetic number, because the mean of its divisors is an integer number (38214136).

Almost surely, 2^76428271 is an apocalyptic number.

76428271 is a deficient number, since it is larger than the sum of its proper divisors (1).

76428271 is an equidigital number, since it uses as much as digits as its factorization.

76428271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37632, while the sum is 37.

The square root of 76428271 is about 8742.3264066266. The cubic root of 76428271 is about 424.3765178531.

The spelling of 76428271 in words is "seventy-six million, four hundred twenty-eight thousand, two hundred seventy-one".