698713874 has 4 divisors (see below), whose sum is σ = 1048070814. Its totient is φ = 349356936.

The previous prime is 698713861. The next prime is 698713901. The reversal of 698713874 is 478317896.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 538564849 + 160149025 = 23207^2 + 12655^2 .

It is a super-3 number, since 3×698713874³ (a number of 28 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174678467 + ... + 174678470.

Almost surely, 2^698713874 is an apocalyptic number.

698713874 is a deficient number, since it is larger than the sum of its proper divisors (349356940).

698713874 is a wasteful number, since it uses less digits than its factorization.

698713874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349356939.

The product of its digits is 2032128, while the sum is 53.

The square root of 698713874 is about 26433.1964393261. The cubic root of 698713874 is about 887.3598795913.

The spelling of 698713874 in words is "six hundred ninety-eight million, seven hundred thirteen thousand, eight hundred seventy-four".