6900688387 has 2 divisors, whose sum is σ = 6900688388. Its totient is φ = 6900688386.

The previous prime is 6900688369. The next prime is 6900688411. The reversal of 6900688387 is 7838860096.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6900688387 - 2¹¹ = 6900686339 is a prime.

It is not a weakly prime, because it can be changed into another prime (6900688357) 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, 3450344193 + 3450344194.

It is an arithmetic number, because the mean of its divisors is an integer number (3450344194).

Almost surely, 2^6900688387 is an apocalyptic number.

6900688387 is a deficient number, since it is larger than the sum of its proper divisors (1).

6900688387 is an equidigital number, since it uses as much as digits as its factorization.

6900688387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3483648, while the sum is 55.

The square root of 6900688387 is about 83070.3821286504. The cubic root of 6900688387 is about 1903.8415707858.

The spelling of 6900688387 in words is "six billion, nine hundred million, six hundred eighty-eight thousand, three hundred eighty-seven".