698351867 has 2 divisors, whose sum is σ = 698351868. Its totient is φ = 698351866.

The previous prime is 698351831. The next prime is 698351869. The reversal of 698351867 is 768153896.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 698351867 - 2¹⁴ = 698335483 is a prime.

Together with 698351869, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (698351869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349175933 + 349175934.

It is an arithmetic number, because the mean of its divisors is an integer number (349175934).

Almost surely, 2^698351867 is an apocalyptic number.

698351867 is a deficient number, since it is larger than the sum of its proper divisors (1).

698351867 is an equidigital number, since it uses as much as digits as its factorization.

698351867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 53.

The square root of 698351867 is about 26426.3479694036. The cubic root of 698351867 is about 887.2066046515.

The spelling of 698351867 in words is "six hundred ninety-eight million, three hundred fifty-one thousand, eight hundred sixty-seven".