698722441 has 2 divisors, whose sum is σ = 698722442. Its totient is φ = 698722440.

The previous prime is 698722421. The next prime is 698722447. The reversal of 698722441 is 144227896.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 698492041 + 230400 = 26429^2 + 480^2 .

It is a cyclic number.

It is not a de Polignac number, because 698722441 - 2⁹ = 698721929 is a prime.

It is not a weakly prime, because it can be changed into another prime (698722447) 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, 349361220 + 349361221.

It is an arithmetic number, because the mean of its divisors is an integer number (349361221).

Almost surely, 2^698722441 is an apocalyptic number.

It is an amenable number.

698722441 is a deficient number, since it is larger than the sum of its proper divisors (1).

698722441 is an equidigital number, since it uses as much as digits as its factorization.

698722441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 43.

The square root of 698722441 is about 26433.3584888489. The cubic root of 698722441 is about 887.3635062456.

The spelling of 698722441 in words is "six hundred ninety-eight million, seven hundred twenty-two thousand, four hundred forty-one".