698328139 has 6 divisors (see below), whose sum is σ = 730010876. Its totient is φ = 667965540.

The previous prime is 698328133. The next prime is 698328157. The reversal of 698328139 is 931823896.

It is not a de Polignac number, because 698328139 - 2¹⁵ = 698295371 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 698328092 and 698328101.

It is not an unprimeable number, because it can be changed into a prime (698328133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 659517 + ... + 660574.

Almost surely, 2^698328139 is an apocalyptic number.

698328139 is a deficient number, since it is larger than the sum of its proper divisors (31682737).

698328139 is a wasteful number, since it uses less digits than its factorization.

698328139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320137 (or 1320114 counting only the distinct ones).

The product of its digits is 559872, while the sum is 49.

The square root of 698328139 is about 26425.8990197117. The cubic root of 698328139 is about 887.1965562896.

The spelling of 698328139 in words is "six hundred ninety-eight million, three hundred twenty-eight thousand, one hundred thirty-nine".