7428271 has 2 divisors, whose sum is σ = 7428272. Its totient is φ = 7428270.

The previous prime is 7428227. The next prime is 7428283. The reversal of 7428271 is 1728247.

It is a strong prime.

It is an emirp because it is prime and its reverse (1728247) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7428271 - 2¹³ = 7420079 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7428571) 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, 3714135 + 3714136.

It is an arithmetic number, because the mean of its divisors is an integer number (3714136).

Almost surely, 2^7428271 is an apocalyptic number.

7428271 is a deficient number, since it is larger than the sum of its proper divisors (1).

7428271 is an equidigital number, since it uses as much as digits as its factorization.

7428271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6272, while the sum is 31.

The square root of 7428271 is about 2725.4854613445. The cubic root of 7428271 is about 195.1173608665.

The spelling of 7428271 in words is "seven million, four hundred twenty-eight thousand, two hundred seventy-one".