349584769 has 4 divisors (see below), whose sum is σ = 359033044. Its totient is φ = 340136496.

The previous prime is 349584757. The next prime is 349584779. The reversal of 349584769 is 967485943.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 967485943 = 167 ⋅5793329.

It can be written as a sum of positive squares in 2 ways, for example, as 277555600 + 72029169 = 16660^2 + 8487^2 .

It is a cyclic number.

It is not a de Polignac number, because 349584769 - 2²¹ = 347487617 is a prime.

It is a super-2 number, since 2×349584769² = 244419021433566722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349584709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4724082 + ... + 4724155.

It is an arithmetic number, because the mean of its divisors is an integer number (89758261).

Almost surely, 2^349584769 is an apocalyptic number.

It is an amenable number.

349584769 is a deficient number, since it is larger than the sum of its proper divisors (9448275).

349584769 is an equidigital number, since it uses as much as digits as its factorization.

349584769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9448274.

The product of its digits is 6531840, while the sum is 55.

The square root of 349584769 is about 18697.1861251901. The cubic root of 349584769 is about 704.4510717898.

The spelling of 349584769 in words is "three hundred forty-nine million, five hundred eighty-four thousand, seven hundred sixty-nine".