698228719 has 2 divisors, whose sum is σ = 698228720. Its totient is φ = 698228718.

The previous prime is 698228693. The next prime is 698228803. The reversal of 698228719 is 917822896.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 698228719 - 2¹⁹ = 697704431 is a prime.

It is a super-2 number, since 2×698228719² = 975046688072761922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (698228119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349114359 + 349114360.

It is an arithmetic number, because the mean of its divisors is an integer number (349114360).

Almost surely, 2^698228719 is an apocalyptic number.

698228719 is a deficient number, since it is larger than the sum of its proper divisors (1).

698228719 is an equidigital number, since it uses as much as digits as its factorization.

698228719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 52.

The square root of 698228719 is about 26424.0178436210. The cubic root of 698228719 is about 887.1544513140.

The spelling of 698228719 in words is "six hundred ninety-eight million, two hundred twenty-eight thousand, seven hundred nineteen".