698407741 has 2 divisors, whose sum is σ = 698407742. Its totient is φ = 698407740.

The previous prime is 698407739. The next prime is 698407771. The reversal of 698407741 is 147704896.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 360620100 + 337787641 = 18990^2 + 18379^2 .

It is a cyclic number.

It is not a de Polignac number, because 698407741 - 2¹ = 698407739 is a prime.

Together with 698407739, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 698407691 and 698407700.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (698407771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349203870 + 349203871.

It is an arithmetic number, because the mean of its divisors is an integer number (349203871).

Almost surely, 2^698407741 is an apocalyptic number.

It is an amenable number.

698407741 is a deficient number, since it is larger than the sum of its proper divisors (1).

698407741 is an equidigital number, since it uses as much as digits as its factorization.

698407741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 698407741 is about 26427.4051128748. The cubic root of 698407741 is about 887.2302653409.

The spelling of 698407741 in words is "six hundred ninety-eight million, four hundred seven thousand, seven hundred forty-one".