803643345 has 24 divisors (see below), whose sum is σ = 1453548096. Its totient is φ = 409974048.

The previous prime is 803643289. The next prime is 803643353. The reversal of 803643345 is 543346308.

803643345 is a `hidden beast` number, since 8 + 0 + 3 + 643 + 3 + 4 + 5 = 666.

It is not a de Polignac number, because 803643345 - 2⁸ = 803643089 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 387199 + ... + 389268.

It is an arithmetic number, because the mean of its divisors is an integer number (60564504).

Almost surely, 2^803643345 is an apocalyptic number.

It is an amenable number.

803643345 is a deficient number, since it is larger than the sum of its proper divisors (649904751).

803643345 is a wasteful number, since it uses less digits than its factorization.

803643345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776501 (or 776498 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The square root of 803643345 is about 28348.6039338801. The cubic root of 803643345 is about 929.7248752594.

The spelling of 803643345 in words is "eight hundred three million, six hundred forty-three thousand, three hundred forty-five".