346690369 has 4 divisors (see below), whose sum is σ = 349017300. Its totient is φ = 344363440.

The previous prime is 346690363. The next prime is 346690423. The reversal of 346690369 is 963096643.

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

It can be written as a sum of positive squares in 2 ways, for example, as 225360144 + 121330225 = 15012^2 + 11015^2 .

It is a cyclic number.

It is not a de Polignac number, because 346690369 - 2¹⁵ = 346657601 is a prime.

It is a super-2 number, since 2×346690369² = 240388423914712322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (346690363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1163242 + ... + 1163539.

It is an arithmetic number, because the mean of its divisors is an integer number (87254325).

Almost surely, 2^346690369 is an apocalyptic number.

It is an amenable number.

346690369 is a deficient number, since it is larger than the sum of its proper divisors (2326931).

346690369 is a wasteful number, since it uses less digits than its factorization.

346690369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2326930.

The product of its (nonzero) digits is 629856, while the sum is 46.

The square root of 346690369 is about 18619.6232239001. The cubic root of 346690369 is about 702.5015051280.

The spelling of 346690369 in words is "three hundred forty-six million, six hundred ninety thousand, three hundred sixty-nine".