345563869 has 16 divisors (see below), whose sum is σ = 405336960. Its totient is φ = 288475200.

The previous prime is 345563863. The next prime is 345563893. The reversal of 345563869 is 968365543.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 345563869 - 2³ = 345563861 is a prime.

It is a super-3 number, since 3×345563869³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345563861) 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, 48219 + ... + 54919.

It is an arithmetic number, because the mean of its divisors is an integer number (25333560).

Almost surely, 2^345563869 is an apocalyptic number.

It is an amenable number.

345563869 is a deficient number, since it is larger than the sum of its proper divisors (59773091).

345563869 is a wasteful number, since it uses less digits than its factorization.

345563869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6900.

The product of its digits is 2332800, while the sum is 49.

The square root of 345563869 is about 18589.3482672201. The cubic root of 345563869 is about 701.7398008362.

The spelling of 345563869 in words is "three hundred forty-five million, five hundred sixty-three thousand, eight hundred sixty-nine".