863520345 has 80 divisors (see below), whose sum is σ = 1615088640. Its totient is φ = 440899200.

The previous prime is 863520277. The next prime is 863520347. The reversal of 863520345 is 543025368.

It is a happy number.

863520345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 863520345 - 2¹⁵ = 863487577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (863520347) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1368180 + ... + 1368810.

It is an arithmetic number, because the mean of its divisors is an integer number (20188608).

Almost surely, 2^863520345 is an apocalyptic number.

It is an amenable number.

863520345 is a deficient number, since it is larger than the sum of its proper divisors (751568295).

863520345 is a wasteful number, since it uses less digits than its factorization.

863520345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788 (or 779 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 863520345 is about 29385.7166834501. The cubic root of 863520345 is about 952.2643474322.

The spelling of 863520345 in words is "eight hundred sixty-three million, five hundred twenty thousand, three hundred forty-five".