698090143 has 2 divisors, whose sum is σ = 698090144. Its totient is φ = 698090142.

The previous prime is 698090069. The next prime is 698090177. The reversal of 698090143 is 341090896.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 698090143 - 2⁹ = 698089631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 698090096 and 698090105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (698090243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349045071 + 349045072.

It is an arithmetic number, because the mean of its divisors is an integer number (349045072).

Almost surely, 2^698090143 is an apocalyptic number.

698090143 is a deficient number, since it is larger than the sum of its proper divisors (1).

698090143 is an equidigital number, since it uses as much as digits as its factorization.

698090143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 698090143 is about 26421.3955536039. The cubic root of 698090143 is about 887.0957568653.

The spelling of 698090143 in words is "six hundred ninety-eight million, ninety thousand, one hundred forty-three".