345429647 has 16 divisors (see below), whose sum is σ = 370101312. Its totient is φ = 321269760.

The previous prime is 345429607. The next prime is 345429653. The reversal of 345429647 is 746924543.

It is a cyclic number.

It is not a de Polignac number, because 345429647 - 2⁶ = 345429583 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 345429598 and 345429607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345429607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 797543 + ... + 797975.

It is an arithmetic number, because the mean of its divisors is an integer number (23131332).

Almost surely, 2^345429647 is an apocalyptic number.

345429647 is a deficient number, since it is larger than the sum of its proper divisors (24671665).

345429647 is a wasteful number, since it uses less digits than its factorization.

345429647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898.

The product of its digits is 725760, while the sum is 44.

The square root of 345429647 is about 18585.7377308516. The cubic root of 345429647 is about 701.6489337776.

The spelling of 345429647 in words is "three hundred forty-five million, four hundred twenty-nine thousand, six hundred forty-seven".