6987523 has 2 divisors, whose sum is σ = 6987524. Its totient is φ = 6987522.

The previous prime is 6987517. The next prime is 6987529. The reversal of 6987523 is 3257896.

It is a balanced prime because it is at equal distance from previous prime (6987517) and next prime (6987529).

6987523 is a truncatable prime.

It is a cyclic number.

It is not a de Polignac number, because 6987523 - 2²¹ = 4890371 is a prime.

6987523 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (6987529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3493761 + 3493762.

It is an arithmetic number, because the mean of its divisors is an integer number (3493762).

Almost surely, 2^6987523 is an apocalyptic number.

6987523 is a deficient number, since it is larger than the sum of its proper divisors (1).

6987523 is an equidigital number, since it uses as much as digits as its factorization.

6987523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 40.

The square root of 6987523 is about 2643.3923280512. The cubic root of 6987523 is about 191.1793952429.

The spelling of 6987523 in words is "six million, nine hundred eighty-seven thousand, five hundred twenty-three".