698394859 has 8 divisors (see below), whose sum is σ = 717559920. Its totient is φ = 679474176.

The previous prime is 698394817. The next prime is 698394881. The reversal of 698394859 is 958493896.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 698394859 - 2¹⁹ = 697870571 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 698394797 and 698394806.

It is not an unprimeable number, because it can be changed into a prime (698394259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55294 + ... + 66739.

It is an arithmetic number, because the mean of its divisors is an integer number (89694990).

Almost surely, 2^698394859 is an apocalyptic number.

698394859 is a deficient number, since it is larger than the sum of its proper divisors (19165061).

698394859 is a wasteful number, since it uses less digits than its factorization.

698394859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122189.

The product of its digits is 16796160, while the sum is 61.

The square root of 698394859 is about 26427.1613874816. The cubic root of 698394859 is about 887.2248103753.

The spelling of 698394859 in words is "six hundred ninety-eight million, three hundred ninety-four thousand, eight hundred fifty-nine".