698148459 has 6 divisors (see below), whose sum is σ = 1008436676. Its totient is φ = 465432300.

The previous prime is 698148443. The next prime is 698148499. The reversal of 698148459 is 954841896.

It is not a de Polignac number, because 698148459 - 2⁴ = 698148443 is a prime.

It is a super-2 number, since 2×698148459² = 974822541608149362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (698148419) 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 in 5 ways as a sum of consecutive naturals, for example, 38786017 + ... + 38786034.

Almost surely, 2^698148459 is an apocalyptic number.

698148459 is a deficient number, since it is larger than the sum of its proper divisors (310288217).

698148459 is a wasteful number, since it uses less digits than its factorization.

698148459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77572057 (or 77572054 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 54.

The square root of 698148459 is about 26422.4991058757. The cubic root of 698148459 is about 887.1204577993.

The spelling of 698148459 in words is "six hundred ninety-eight million, one hundred forty-eight thousand, four hundred fifty-nine".