698103421 has 2 divisors, whose sum is σ = 698103422. Its totient is φ = 698103420.

The previous prime is 698103397. The next prime is 698103431. The reversal of 698103421 is 124301896.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 697540921 + 562500 = 26411^2 + 750^2 .

It is a cyclic number.

It is not a de Polignac number, because 698103421 - 2⁵ = 698103389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (698103431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349051710 + 349051711.

It is an arithmetic number, because the mean of its divisors is an integer number (349051711).

Almost surely, 2^698103421 is an apocalyptic number.

It is an amenable number.

698103421 is a deficient number, since it is larger than the sum of its proper divisors (1).

698103421 is an equidigital number, since it uses as much as digits as its factorization.

698103421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 698103421 is about 26421.6468260402. The cubic root of 698103421 is about 887.1013811546.

The spelling of 698103421 in words is "six hundred ninety-eight million, one hundred three thousand, four hundred twenty-one".