346945729 has 8 divisors (see below), whose sum is σ = 374070312. Its totient is φ = 319883520.

The previous prime is 346945723. The next prime is 346945733. The reversal of 346945729 is 927549643.

It can be written as a sum of positive squares in 4 ways, for example, as 129600 + 346816129 = 360^2 + 18623^2 .

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 346945729 - 2³ = 346945721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (346945721) 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, 3694 + ... + 26599.

It is an arithmetic number, because the mean of its divisors is an integer number (46758789).

Almost surely, 2^346945729 is an apocalyptic number.

It is an amenable number.

346945729 is a deficient number, since it is larger than the sum of its proper divisors (27124583).

346945729 is a wasteful number, since it uses less digits than its factorization.

346945729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31187.

The product of its digits is 1632960, while the sum is 49.

The square root of 346945729 is about 18626.4792432709. The cubic root of 346945729 is about 702.6739421439.

The spelling of 346945729 in words is "three hundred forty-six million, nine hundred forty-five thousand, seven hundred twenty-nine".