7489871 has 2 divisors, whose sum is σ = 7489872. Its totient is φ = 7489870.

The previous prime is 7489849. The next prime is 7489913. The reversal of 7489871 is 1789847.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7489871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7489841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3744935 + 3744936.

It is an arithmetic number, because the mean of its divisors is an integer number (3744936).

Almost surely, 2^7489871 is an apocalyptic number.

7489871 is a deficient number, since it is larger than the sum of its proper divisors (1).

7489871 is an equidigital number, since it uses as much as digits as its factorization.

7489871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112896, while the sum is 44.

The square root of 7489871 is about 2736.7628687923. The cubic root of 7489871 is about 195.6552230385.

The spelling of 7489871 in words is "seven million, four hundred eighty-nine thousand, eight hundred seventy-one".