349556065 has 4 divisors (see below), whose sum is σ = 419467284. Its totient is φ = 279644848.

The previous prime is 349556059. The next prime is 349556071. The reversal of 349556065 is 560655943.

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

It is an interprime number because it is at equal distance from previous prime (349556059) and next prime (349556071).

It can be written as a sum of positive squares in 2 ways, for example, as 115863696 + 233692369 = 10764^2 + 15287^2 .

It is a cyclic number.

It is not a de Polignac number, because 349556065 - 2²¹ = 347458913 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34955602 + ... + 34955611.

It is an arithmetic number, because the mean of its divisors is an integer number (104866821).

Almost surely, 2^349556065 is an apocalyptic number.

It is an amenable number.

349556065 is a deficient number, since it is larger than the sum of its proper divisors (69911219).

349556065 is an equidigital number, since it uses as much as digits as its factorization.

349556065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69911218.

The product of its (nonzero) digits is 486000, while the sum is 43.

The square root of 349556065 is about 18696.4185072971. The cubic root of 349556065 is about 704.4317907085.

Subtracting 349556065 from its reverse (560655943), we obtain a triangular number (211099878 = T₂₀₅₄₇).

The spelling of 349556065 in words is "three hundred forty-nine million, five hundred fifty-six thousand, sixty-five".