698159741 has 2 divisors, whose sum is σ = 698159742. Its totient is φ = 698159740.

The previous prime is 698159677. The next prime is 698159801. The reversal of 698159741 is 147951896.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 396408100 + 301751641 = 19910^2 + 17371^2 .

It is a cyclic number.

It is not a de Polignac number, because 698159741 - 2⁶ = 698159677 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 698159741.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (698153741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349079870 + 349079871.

It is an arithmetic number, because the mean of its divisors is an integer number (349079871).

Almost surely, 2^698159741 is an apocalyptic number.

It is an amenable number.

698159741 is a deficient number, since it is larger than the sum of its proper divisors (1).

698159741 is an equidigital number, since it uses as much as digits as its factorization.

698159741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 50.

The square root of 698159741 is about 26422.7125973092. The cubic root of 698159741 is about 887.1252363623.

The spelling of 698159741 in words is "six hundred ninety-eight million, one hundred fifty-nine thousand, seven hundred forty-one".