6890715523 has 2 divisors, whose sum is σ = 6890715524. Its totient is φ = 6890715522.

The previous prime is 6890715473. The next prime is 6890715529. The reversal of 6890715523 is 3255170986.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6890715523 - 2⁹ = 6890715011 is a prime.

It is not a weakly prime, because it can be changed into another prime (6890715529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3445357761 + 3445357762.

It is an arithmetic number, because the mean of its divisors is an integer number (3445357762).

Almost surely, 2^6890715523 is an apocalyptic number.

6890715523 is a deficient number, since it is larger than the sum of its proper divisors (1).

6890715523 is an equidigital number, since it uses as much as digits as its factorization.

6890715523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 46.

The square root of 6890715523 is about 83010.3338326018. Note that the first 3 decimals coincide. The cubic root of 6890715523 is about 1902.9239856653.

The spelling of 6890715523 in words is "six billion, eight hundred ninety million, seven hundred fifteen thousand, five hundred twenty-three".