345563393 has 16 divisors (see below), whose sum is σ = 417479040. Its totient is φ = 279417600.

The previous prime is 345563389. The next prime is 345563399. The reversal of 345563393 is 393365543.

It is a happy number.

It is not a de Polignac number, because 345563393 - 2² = 345563389 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 345563393.

It is not an unprimeable number, because it can be changed into a prime (345563399) 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, 26663 + ... + 37443.

It is an arithmetic number, because the mean of its divisors is an integer number (26092440).

Almost surely, 2^345563393 is an apocalyptic number.

It is an amenable number.

345563393 is a deficient number, since it is larger than the sum of its proper divisors (71915647).

345563393 is a wasteful number, since it uses less digits than its factorization.

345563393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11048.

The product of its digits is 437400, while the sum is 41.

The square root of 345563393 is about 18589.3354641848. The cubic root of 345563393 is about 701.7394786301.

The spelling of 345563393 in words is "three hundred forty-five million, five hundred sixty-three thousand, three hundred ninety-three".