659398349 has 8 divisors (see below), whose sum is σ = 688324248. Its totient is φ = 631056960.

The previous prime is 659398343. The next prime is 659398381. The reversal of 659398349 is 943893956.

It can be written as a sum of positive squares in 4 ways, for example, as 50197225 + 609201124 = 7085^2 + 24682^2 .

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 659398349 - 2²⁸ = 390962893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 659398294 and 659398303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (659398343) 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, 143822 + ... + 148335.

It is an arithmetic number, because the mean of its divisors is an integer number (86040531).

Almost surely, 2^659398349 is an apocalyptic number.

It is an amenable number.

659398349 is a deficient number, since it is larger than the sum of its proper divisors (28925899).

659398349 is a wasteful number, since it uses less digits than its factorization.

659398349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292255.

The product of its digits is 6298560, while the sum is 56.

The square root of 659398349 is about 25678.7528708074. The cubic root of 659398349 is about 870.3941267064.

The spelling of 659398349 in words is "six hundred fifty-nine million, three hundred ninety-eight thousand, three hundred forty-nine".