345824617 has 2 divisors, whose sum is σ = 345824618. Its totient is φ = 345824616.

The previous prime is 345824581. The next prime is 345824621. The reversal of 345824617 is 716428543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 252682816 + 93141801 = 15896^2 + 9651^2 .

It is an emirp because it is prime and its reverse (716428543) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345824617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 345824617.

It is not a weakly prime, because it can be changed into another prime (345824117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172912308 + 172912309.

It is an arithmetic number, because the mean of its divisors is an integer number (172912309).

Almost surely, 2^345824617 is an apocalyptic number.

It is an amenable number.

345824617 is a deficient number, since it is larger than the sum of its proper divisors (1).

345824617 is an equidigital number, since it uses as much as digits as its factorization.

345824617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161280, while the sum is 40.

The square root of 345824617 is about 18596.3603159328. The cubic root of 345824617 is about 701.9162576005.

The spelling of 345824617 in words is "three hundred forty-five million, eight hundred twenty-four thousand, six hundred seventeen".