690071027 has 2 divisors, whose sum is σ = 690071028. Its totient is φ = 690071026.

The previous prime is 690071017. The next prime is 690071033. The reversal of 690071027 is 720170096.

690071027 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 690071027 - 2¹⁴ = 690054643 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 690070984 and 690071002.

It is not a weakly prime, because it can be changed into another prime (690071017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345035513 + 345035514.

It is an arithmetic number, because the mean of its divisors is an integer number (345035514).

Almost surely, 2^690071027 is an apocalyptic number.

690071027 is a deficient number, since it is larger than the sum of its proper divisors (1).

690071027 is an equidigital number, since it uses as much as digits as its factorization.

690071027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 690071027 is about 26269.2030141761. The cubic root of 690071027 is about 883.6859116859.

The spelling of 690071027 in words is "six hundred ninety million, seventy-one thousand, twenty-seven".