345214817 has 4 divisors (see below), whose sum is σ = 345438660. Its totient is φ = 344990976.

The previous prime is 345214813. The next prime is 345214867. The reversal of 345214817 is 718412543.

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 68624656 + 276590161 = 8284^2 + 16631^2 .

It is a cyclic number.

It is not a de Polignac number, because 345214817 - 2² = 345214813 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345214813) 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, 109592 + ... + 112697.

It is an arithmetic number, because the mean of its divisors is an integer number (86359665).

Almost surely, 2^345214817 is an apocalyptic number.

It is an amenable number.

345214817 is a deficient number, since it is larger than the sum of its proper divisors (223843).

345214817 is a wasteful number, since it uses less digits than its factorization.

345214817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223842.

The product of its digits is 26880, while the sum is 35.

The square root of 345214817 is about 18579.9574003817. The cubic root of 345214817 is about 701.5034468446.

The spelling of 345214817 in words is "three hundred forty-five million, two hundred fourteen thousand, eight hundred seventeen".