698971027 has 2 divisors, whose sum is σ = 698971028. Its totient is φ = 698971026.

The previous prime is 698971003. The next prime is 698971037. The reversal of 698971027 is 720179896.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-698971027 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (698971037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349485513 + 349485514.

It is an arithmetic number, because the mean of its divisors is an integer number (349485514).

Almost surely, 2^698971027 is an apocalyptic number.

698971027 is a deficient number, since it is larger than the sum of its proper divisors (1).

698971027 is an equidigital number, since it uses as much as digits as its factorization.

698971027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 49.

The square root of 698971027 is about 26438.0601973745. The cubic root of 698971027 is about 887.4687268488.

The spelling of 698971027 in words is "six hundred ninety-eight million, nine hundred seventy-one thousand, twenty-seven".