698734659 has 24 divisors (see below), whose sum is σ = 1084777488. Its totient is φ = 398899200.

The previous prime is 698734601. The next prime is 698734739. The reversal of 698734659 is 956437896.

It is a happy number.

It is not a de Polignac number, because 698734659 - 2⁸ = 698734403 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 698734599 and 698734608.

It is not an unprimeable number, because it can be changed into a prime (698784659) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 248059 + ... + 250859.

It is an arithmetic number, because the mean of its divisors is an integer number (45199062).

Almost surely, 2^698734659 is an apocalyptic number.

698734659 is a deficient number, since it is larger than the sum of its proper divisors (386042829).

698734659 is a wasteful number, since it uses less digits than its factorization.

698734659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4515 (or 4508 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 57.

The square root of 698734659 is about 26433.5895973286. The cubic root of 698734659 is about 887.3686784205.

The spelling of 698734659 in words is "six hundred ninety-eight million, seven hundred thirty-four thousand, six hundred fifty-nine".